21312720

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:72

約数の個数: 400

約数和(自身を含む): 90744192

約数和(自身を除く): 69431472

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 23, 24, 26, 27, 30, 33, 36, 39, 40, 44, 45, 46, 48, 52, 54, 55, 60, 65, 66, 69, 72, 78, 80, 81, 88, 90, 92, 99, 104, 108, 110, 115, 117, 120, 130, 132, 135, 138, 143, 144, 156, 162, 165, 176, 180, 184, 195, 198, 207, 208, 216, 220, 230, 234, 240, 253, 260, 264, 270, 276, 286, 297, 299, 312, 324, 330, 345, 351, 360, 368, 390, 396, 405, 414, 429, 432, 440, 460, 468, 495, 506, 520, 528, 540, 552, 572, 585, 594, 598, 621, 624, 648, 660, 690, 702, 715, 720, 759, 780, 792, 810, 828, 858, 880, 891, 897, 920, 936, 990, 1012, 1035, 1040, 1053, 1080, 1104, 1144, 1170, 1188, 1196, 1242, 1265, 1287, 1296, 1320, 1380, 1404, 1430, 1485, 1495, 1518, 1560, 1584, 1620, 1656, 1716, 1755, 1782, 1794, 1840, 1863, 1872, 1980, 2024, 2070, 2106, 2145, 2160, 2277, 2288, 2340, 2376, 2392, 2484, 2530, 2574, 2640, 2691, 2760, 2808, 2860, 2970, 2990, 3036, 3105, 3120, 3240, 3289, 3312, 3432, 3510, 3564, 3588, 3726, 3795, 3861, 3960, 4048, 4140, 4212, 4290, 4455, 4485, 4554, 4680, 4752, 4784, 4968, 5060, 5148, 5265, 5382, 5520, 5616, 5720, 5940, 5980, 6072, 6210, 6435, 6480, 6578, 6831, 6864, 7020, 7128, 7176, 7452, 7590, 7722, 7920, 8073, 8280, 8424, 8580, 8910, 8970, 9108, 9315, 9360, 9867, 9936, 10120, 10296, 10530, 10764, 11385, 11440, 11583, 11880, 11960, 12144, 12420, 12870, 13156, 13455, 13662, 14040, 14256, 14352, 14904, 15180, 15444, 16146, 16445, 16560, 16848, 17160, 17820, 17940, 18216, 18630, 19305, 19734, 20240, 20493, 20592, 21060, 21528, 22770, 23166, 23760, 23920, 24219, 24840, 25740, 26312, 26910, 27324, 28080, 29601, 29808, 30360, 30888, 32292, 32890, 34155, 34320, 35640, 35880, 36432, 37260, 38610, 39468, 40365, 40986, 42120, 43056, 45540, 46332, 48438, 49335, 49680, 51480, 52624, 53820, 54648, 57915, 59202, 60720, 61776, 64584, 65780, 68310, 71280, 71760, 74520, 77220, 78936, 80730, 81972, 84240, 88803, 91080, 92664, 96876, 98670, 102465, 102960, 107640, 109296, 115830, 118404, 121095, 129168, 131560, 136620, 148005, 149040, 154440, 157872, 161460, 163944, 177606, 182160, 185328, 193752, 197340, 204930, 215280, 231660, 236808, 242190, 263120, 266409, 273240, 296010, 308880, 322920, 327888, 355212, 387504, 394680, 409860, 444015, 463320, 473616, 484380, 532818, 546480, 592020, 645840, 710424, 789360, 819720, 888030, 926640, 968760, 1065636, 1184040, 1332045, 1420848, 1639440, 1776060, 1937520, 2131272, 2368080, 2664090, 3552120, 4262544, 5328180, 7104240, 10656360, 21312720]

約数ペア:

[(1, 21312720), (2, 10656360), (3, 7104240), (4, 5328180), (5, 4262544), (6, 3552120), (8, 2664090), (9, 2368080), (10, 2131272), (11, 1937520), (12, 1776060), (13, 1639440), (15, 1420848), (16, 1332045), (18, 1184040), (20, 1065636), (22, 968760), (23, 926640), (24, 888030), (26, 819720), (27, 789360), (30, 710424), (33, 645840), (36, 592020), (39, 546480), (40, 532818), (44, 484380), (45, 473616), (46, 463320), (48, 444015), (52, 409860), (54, 394680), (55, 387504), (60, 355212), (65, 327888), (66, 322920), (69, 308880), (72, 296010), (78, 273240), (80, 266409), (81, 263120), (88, 242190), (90, 236808), (92, 231660), (99, 215280), (104, 204930), (108, 197340), (110, 193752), (115, 185328), (117, 182160), (120, 177606), (130, 163944), (132, 161460), (135, 157872), (138, 154440), (143, 149040), (144, 148005), (156, 136620), (162, 131560), (165, 129168), (176, 121095), (180, 118404), (184, 115830), (195, 109296), (198, 107640), (207, 102960), (208, 102465), (216, 98670), (220, 96876), (230, 92664), (234, 91080), (240, 88803), (253, 84240), (260, 81972), (264, 80730), (270, 78936), (276, 77220), (286, 74520), (297, 71760), (299, 71280), (312, 68310), (324, 65780), (330, 64584), (345, 61776), (351, 60720), (360, 59202), (368, 57915), (390, 54648), (396, 53820), (405, 52624), (414, 51480), (429, 49680), (432, 49335), (440, 48438), (460, 46332), (468, 45540), (495, 43056), (506, 42120), (520, 40986), (528, 40365), (540, 39468), (552, 38610), (572, 37260), (585, 36432), (594, 35880), (598, 35640), (621, 34320), (624, 34155), (648, 32890), (660, 32292), (690, 30888), (702, 30360), (715, 29808), (720, 29601), (759, 28080), (780, 27324), (792, 26910), (810, 26312), (828, 25740), (858, 24840), (880, 24219), (891, 23920), (897, 23760), (920, 23166), (936, 22770), (990, 21528), (1012, 21060), (1035, 20592), (1040, 20493), (1053, 20240), (1080, 19734), (1104, 19305), (1144, 18630), (1170, 18216), (1188, 17940), (1196, 17820), (1242, 17160), (1265, 16848), (1287, 16560), (1296, 16445), (1320, 16146), (1380, 15444), (1404, 15180), (1430, 14904), (1485, 14352), (1495, 14256), (1518, 14040), (1560, 13662), (1584, 13455), (1620, 13156), (1656, 12870), (1716, 12420), (1755, 12144), (1782, 11960), (1794, 11880), (1840, 11583), (1863, 11440), (1872, 11385), (1980, 10764), (2024, 10530), (2070, 10296), (2106, 10120), (2145, 9936), (2160, 9867), (2277, 9360), (2288, 9315), (2340, 9108), (2376, 8970), (2392, 8910), (2484, 8580), (2530, 8424), (2574, 8280), (2640, 8073), (2691, 7920), (2760, 7722), (2808, 7590), (2860, 7452), (2970, 7176), (2990, 7128), (3036, 7020), (3105, 6864), (3120, 6831), (3240, 6578), (3289, 6480), (3312, 6435), (3432, 6210), (3510, 6072), (3564, 5980), (3588, 5940), (3726, 5720), (3795, 5616), (3861, 5520), (3960, 5382), (4048, 5265), (4140, 5148), (4212, 5060), (4290, 4968), (4455, 4784), (4485, 4752), (4554, 4680)]