18687240

素因数分解:

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

素因数の和:66

約数の個数: 256

約数和(自身を含む): 73785600

約数和(自身を除く): 55098360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 27, 30, 33, 36, 39, 40, 44, 45, 52, 54, 55, 60, 65, 66, 72, 78, 88, 90, 99, 104, 108, 110, 117, 120, 121, 130, 132, 135, 143, 156, 165, 180, 195, 198, 216, 220, 234, 242, 260, 264, 270, 286, 297, 312, 330, 351, 360, 363, 390, 396, 429, 440, 468, 484, 495, 520, 540, 572, 585, 594, 605, 660, 702, 715, 726, 780, 792, 858, 936, 968, 990, 1080, 1089, 1144, 1170, 1188, 1210, 1287, 1320, 1331, 1404, 1430, 1452, 1485, 1560, 1573, 1716, 1755, 1815, 1980, 2145, 2178, 2340, 2376, 2420, 2574, 2662, 2808, 2860, 2904, 2970, 3146, 3267, 3432, 3510, 3630, 3861, 3960, 3993, 4290, 4356, 4680, 4719, 4840, 5148, 5324, 5445, 5720, 5940, 6292, 6435, 6534, 6655, 7020, 7260, 7722, 7865, 7986, 8580, 8712, 9438, 10296, 10648, 10890, 11880, 11979, 12584, 12870, 13068, 13310, 14040, 14157, 14520, 15444, 15730, 15972, 16335, 17160, 17303, 18876, 19305, 19965, 21780, 23595, 23958, 25740, 26136, 26620, 28314, 30888, 31460, 31944, 32670, 34606, 35937, 37752, 38610, 39930, 42471, 43560, 47190, 47916, 51480, 51909, 53240, 56628, 59895, 62920, 65340, 69212, 70785, 71874, 77220, 79860, 84942, 86515, 94380, 95832, 103818, 113256, 119790, 130680, 138424, 141570, 143748, 154440, 155727, 159720, 169884, 173030, 179685, 188760, 207636, 212355, 239580, 259545, 283140, 287496, 311454, 339768, 346060, 359370, 415272, 424710, 467181, 479160, 519090, 566280, 622908, 692120, 718740, 778635, 849420, 934362, 1038180, 1245816, 1437480, 1557270, 1698840, 1868724, 2076360, 2335905, 3114540, 3737448, 4671810, 6229080, 9343620, 18687240]

約数ペア:

[(1, 18687240), (2, 9343620), (3, 6229080), (4, 4671810), (5, 3737448), (6, 3114540), (8, 2335905), (9, 2076360), (10, 1868724), (11, 1698840), (12, 1557270), (13, 1437480), (15, 1245816), (18, 1038180), (20, 934362), (22, 849420), (24, 778635), (26, 718740), (27, 692120), (30, 622908), (33, 566280), (36, 519090), (39, 479160), (40, 467181), (44, 424710), (45, 415272), (52, 359370), (54, 346060), (55, 339768), (60, 311454), (65, 287496), (66, 283140), (72, 259545), (78, 239580), (88, 212355), (90, 207636), (99, 188760), (104, 179685), (108, 173030), (110, 169884), (117, 159720), (120, 155727), (121, 154440), (130, 143748), (132, 141570), (135, 138424), (143, 130680), (156, 119790), (165, 113256), (180, 103818), (195, 95832), (198, 94380), (216, 86515), (220, 84942), (234, 79860), (242, 77220), (260, 71874), (264, 70785), (270, 69212), (286, 65340), (297, 62920), (312, 59895), (330, 56628), (351, 53240), (360, 51909), (363, 51480), (390, 47916), (396, 47190), (429, 43560), (440, 42471), (468, 39930), (484, 38610), (495, 37752), (520, 35937), (540, 34606), (572, 32670), (585, 31944), (594, 31460), (605, 30888), (660, 28314), (702, 26620), (715, 26136), (726, 25740), (780, 23958), (792, 23595), (858, 21780), (936, 19965), (968, 19305), (990, 18876), (1080, 17303), (1089, 17160), (1144, 16335), (1170, 15972), (1188, 15730), (1210, 15444), (1287, 14520), (1320, 14157), (1331, 14040), (1404, 13310), (1430, 13068), (1452, 12870), (1485, 12584), (1560, 11979), (1573, 11880), (1716, 10890), (1755, 10648), (1815, 10296), (1980, 9438), (2145, 8712), (2178, 8580), (2340, 7986), (2376, 7865), (2420, 7722), (2574, 7260), (2662, 7020), (2808, 6655), (2860, 6534), (2904, 6435), (2970, 6292), (3146, 5940), (3267, 5720), (3432, 5445), (3510, 5324), (3630, 5148), (3861, 4840), (3960, 4719), (3993, 4680), (4290, 4356)]