81741720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:409

約数の個数: 128

約数和(自身を含む): 257644800

約数和(自身を除く): 175903080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 83, 87, 116, 120, 145, 166, 174, 232, 249, 283, 290, 332, 348, 415, 435, 498, 566, 580, 664, 696, 830, 849, 870, 996, 1132, 1160, 1245, 1415, 1660, 1698, 1740, 1992, 2264, 2407, 2490, 2830, 3320, 3396, 3480, 4245, 4814, 4980, 5660, 6792, 7221, 8207, 8490, 9628, 9960, 11320, 12035, 14442, 16414, 16980, 19256, 23489, 24070, 24621, 28884, 32828, 33960, 36105, 41035, 46978, 48140, 49242, 57768, 65656, 70467, 72210, 82070, 93956, 96280, 98484, 117445, 123105, 140934, 144420, 164140, 187912, 196968, 234890, 246210, 281868, 288840, 328280, 352335, 469780, 492420, 563736, 681181, 704670, 939560, 984840, 1362362, 1409340, 2043543, 2724724, 2818680, 3405905, 4087086, 5449448, 6811810, 8174172, 10217715, 13623620, 16348344, 20435430, 27247240, 40870860, 81741720]

約数ペア:

[(1, 81741720), (2, 40870860), (3, 27247240), (4, 20435430), (5, 16348344), (6, 13623620), (8, 10217715), (10, 8174172), (12, 6811810), (15, 5449448), (20, 4087086), (24, 3405905), (29, 2818680), (30, 2724724), (40, 2043543), (58, 1409340), (60, 1362362), (83, 984840), (87, 939560), (116, 704670), (120, 681181), (145, 563736), (166, 492420), (174, 469780), (232, 352335), (249, 328280), (283, 288840), (290, 281868), (332, 246210), (348, 234890), (415, 196968), (435, 187912), (498, 164140), (566, 144420), (580, 140934), (664, 123105), (696, 117445), (830, 98484), (849, 96280), (870, 93956), (996, 82070), (1132, 72210), (1160, 70467), (1245, 65656), (1415, 57768), (1660, 49242), (1698, 48140), (1740, 46978), (1992, 41035), (2264, 36105), (2407, 33960), (2490, 32828), (2830, 28884), (3320, 24621), (3396, 24070), (3480, 23489), (4245, 19256), (4814, 16980), (4980, 16414), (5660, 14442), (6792, 12035), (7221, 11320), (8207, 9960), (8490, 9628)]