31442840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 87091200

約数和(自身を除く): 55648360

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 88, 92, 104, 110, 115, 130, 143, 184, 220, 230, 239, 253, 260, 286, 299, 440, 460, 478, 506, 520, 572, 598, 715, 920, 956, 1012, 1144, 1195, 1196, 1265, 1430, 1495, 1912, 2024, 2390, 2392, 2530, 2629, 2860, 2990, 3107, 3289, 4780, 5060, 5258, 5497, 5720, 5980, 6214, 6578, 9560, 10120, 10516, 10994, 11960, 12428, 13145, 13156, 15535, 16445, 21032, 21988, 24856, 26290, 26312, 27485, 31070, 32890, 34177, 43976, 52580, 54970, 60467, 62140, 65780, 68354, 71461, 105160, 109940, 120934, 124280, 131560, 136708, 142922, 170885, 219880, 241868, 273416, 285844, 302335, 341770, 357305, 483736, 571688, 604670, 683540, 714610, 786071, 1209340, 1367080, 1429220, 1572142, 2418680, 2858440, 3144284, 3930355, 6288568, 7860710, 15721420, 31442840]

約数ペア:

[(1, 31442840), (2, 15721420), (4, 7860710), (5, 6288568), (8, 3930355), (10, 3144284), (11, 2858440), (13, 2418680), (20, 1572142), (22, 1429220), (23, 1367080), (26, 1209340), (40, 786071), (44, 714610), (46, 683540), (52, 604670), (55, 571688), (65, 483736), (88, 357305), (92, 341770), (104, 302335), (110, 285844), (115, 273416), (130, 241868), (143, 219880), (184, 170885), (220, 142922), (230, 136708), (239, 131560), (253, 124280), (260, 120934), (286, 109940), (299, 105160), (440, 71461), (460, 68354), (478, 65780), (506, 62140), (520, 60467), (572, 54970), (598, 52580), (715, 43976), (920, 34177), (956, 32890), (1012, 31070), (1144, 27485), (1195, 26312), (1196, 26290), (1265, 24856), (1430, 21988), (1495, 21032), (1912, 16445), (2024, 15535), (2390, 13156), (2392, 13145), (2530, 12428), (2629, 11960), (2860, 10994), (2990, 10516), (3107, 10120), (3289, 9560), (4780, 6578), (5060, 6214), (5258, 5980), (5497, 5720)]