20128680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 384

約数和(自身を含む): 84913920

約数和(自身を除く): 64785240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 17, 18, 20, 22, 23, 24, 26, 30, 33, 34, 36, 39, 40, 44, 45, 46, 51, 52, 55, 60, 65, 66, 68, 69, 72, 78, 85, 88, 90, 92, 99, 102, 104, 110, 115, 117, 120, 130, 132, 136, 138, 143, 153, 156, 165, 170, 180, 184, 187, 195, 198, 204, 207, 220, 221, 230, 234, 253, 255, 260, 264, 276, 286, 299, 306, 312, 330, 340, 345, 360, 374, 390, 391, 396, 408, 414, 429, 440, 442, 460, 468, 495, 506, 510, 520, 552, 561, 572, 585, 598, 612, 660, 663, 680, 690, 715, 748, 759, 765, 780, 782, 792, 828, 858, 884, 897, 920, 935, 936, 990, 1012, 1020, 1035, 1105, 1122, 1144, 1170, 1173, 1196, 1224, 1265, 1287, 1320, 1326, 1380, 1430, 1495, 1496, 1518, 1530, 1560, 1564, 1656, 1683, 1716, 1768, 1794, 1870, 1955, 1980, 1989, 2024, 2040, 2070, 2145, 2210, 2244, 2277, 2340, 2346, 2392, 2431, 2530, 2574, 2652, 2691, 2760, 2805, 2860, 2990, 3036, 3060, 3128, 3289, 3315, 3366, 3432, 3519, 3588, 3740, 3795, 3910, 3960, 3978, 4140, 4290, 4301, 4420, 4485, 4488, 4554, 4680, 4692, 4862, 5060, 5083, 5148, 5304, 5382, 5610, 5720, 5865, 5980, 6072, 6120, 6435, 6578, 6630, 6732, 7038, 7176, 7293, 7480, 7590, 7820, 7956, 8280, 8415, 8580, 8602, 8840, 8970, 9108, 9384, 9724, 9867, 9945, 10120, 10166, 10296, 10764, 11220, 11385, 11730, 11960, 12155, 12870, 12903, 13156, 13260, 13455, 13464, 14076, 14586, 15180, 15249, 15640, 15912, 16445, 16830, 17160, 17204, 17595, 17940, 18216, 19448, 19734, 19890, 20332, 21505, 21528, 21879, 22440, 22770, 23460, 24310, 25415, 25740, 25806, 26312, 26520, 26910, 28152, 29172, 29601, 30360, 30498, 32890, 33660, 34408, 35190, 35880, 36465, 38709, 39468, 39780, 40664, 43010, 43758, 45540, 45747, 46920, 48620, 49335, 50830, 51480, 51612, 53820, 55913, 58344, 59202, 60996, 64515, 65780, 67320, 70380, 72930, 76245, 77418, 78936, 79560, 86020, 87516, 91080, 91494, 97240, 98670, 101660, 103224, 107640, 109395, 111826, 118404, 121992, 129030, 131560, 140760, 145860, 148005, 152490, 154836, 167739, 172040, 175032, 182988, 193545, 197340, 203320, 218790, 223652, 228735, 236808, 258060, 279565, 291720, 296010, 304980, 309672, 335478, 365976, 387090, 394680, 437580, 447304, 457470, 503217, 516120, 559130, 592020, 609960, 670956, 774180, 838695, 875160, 914940, 1006434, 1118260, 1184040, 1341912, 1548360, 1677390, 1829880, 2012868, 2236520, 2516085, 3354780, 4025736, 5032170, 6709560, 10064340, 20128680]

約数ペア:

[(1, 20128680), (2, 10064340), (3, 6709560), (4, 5032170), (5, 4025736), (6, 3354780), (8, 2516085), (9, 2236520), (10, 2012868), (11, 1829880), (12, 1677390), (13, 1548360), (15, 1341912), (17, 1184040), (18, 1118260), (20, 1006434), (22, 914940), (23, 875160), (24, 838695), (26, 774180), (30, 670956), (33, 609960), (34, 592020), (36, 559130), (39, 516120), (40, 503217), (44, 457470), (45, 447304), (46, 437580), (51, 394680), (52, 387090), (55, 365976), (60, 335478), (65, 309672), (66, 304980), (68, 296010), (69, 291720), (72, 279565), (78, 258060), (85, 236808), (88, 228735), (90, 223652), (92, 218790), (99, 203320), (102, 197340), (104, 193545), (110, 182988), (115, 175032), (117, 172040), (120, 167739), (130, 154836), (132, 152490), (136, 148005), (138, 145860), (143, 140760), (153, 131560), (156, 129030), (165, 121992), (170, 118404), (180, 111826), (184, 109395), (187, 107640), (195, 103224), (198, 101660), (204, 98670), (207, 97240), (220, 91494), (221, 91080), (230, 87516), (234, 86020), (253, 79560), (255, 78936), (260, 77418), (264, 76245), (276, 72930), (286, 70380), (299, 67320), (306, 65780), (312, 64515), (330, 60996), (340, 59202), (345, 58344), (360, 55913), (374, 53820), (390, 51612), (391, 51480), (396, 50830), (408, 49335), (414, 48620), (429, 46920), (440, 45747), (442, 45540), (460, 43758), (468, 43010), (495, 40664), (506, 39780), (510, 39468), (520, 38709), (552, 36465), (561, 35880), (572, 35190), (585, 34408), (598, 33660), (612, 32890), (660, 30498), (663, 30360), (680, 29601), (690, 29172), (715, 28152), (748, 26910), (759, 26520), (765, 26312), (780, 25806), (782, 25740), (792, 25415), (828, 24310), (858, 23460), (884, 22770), (897, 22440), (920, 21879), (935, 21528), (936, 21505), (990, 20332), (1012, 19890), (1020, 19734), (1035, 19448), (1105, 18216), (1122, 17940), (1144, 17595), (1170, 17204), (1173, 17160), (1196, 16830), (1224, 16445), (1265, 15912), (1287, 15640), (1320, 15249), (1326, 15180), (1380, 14586), (1430, 14076), (1495, 13464), (1496, 13455), (1518, 13260), (1530, 13156), (1560, 12903), (1564, 12870), (1656, 12155), (1683, 11960), (1716, 11730), (1768, 11385), (1794, 11220), (1870, 10764), (1955, 10296), (1980, 10166), (1989, 10120), (2024, 9945), (2040, 9867), (2070, 9724), (2145, 9384), (2210, 9108), (2244, 8970), (2277, 8840), (2340, 8602), (2346, 8580), (2392, 8415), (2431, 8280), (2530, 7956), (2574, 7820), (2652, 7590), (2691, 7480), (2760, 7293), (2805, 7176), (2860, 7038), (2990, 6732), (3036, 6630), (3060, 6578), (3128, 6435), (3289, 6120), (3315, 6072), (3366, 5980), (3432, 5865), (3519, 5720), (3588, 5610), (3740, 5382), (3795, 5304), (3910, 5148), (3960, 5083), (3978, 5060), (4140, 4862), (4290, 4692), (4301, 4680), (4420, 4554), (4485, 4488)]