90707240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:403

約数の個数: 128

約数和(自身を含む): 240952320

約数和(自身を除く): 150245080

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 31, 34, 40, 52, 62, 65, 68, 85, 104, 124, 130, 136, 155, 170, 221, 248, 260, 310, 331, 340, 403, 442, 520, 527, 620, 662, 680, 806, 884, 1054, 1105, 1240, 1324, 1612, 1655, 1768, 2015, 2108, 2210, 2635, 2648, 3224, 3310, 4030, 4216, 4303, 4420, 5270, 5627, 6620, 6851, 8060, 8606, 8840, 10261, 10540, 11254, 13240, 13702, 16120, 17212, 20522, 21080, 21515, 22508, 27404, 28135, 34255, 34424, 41044, 43030, 45016, 51305, 54808, 56270, 68510, 73151, 82088, 86060, 102610, 112540, 133393, 137020, 146302, 172120, 174437, 205220, 225080, 266786, 274040, 292604, 348874, 365755, 410440, 533572, 585208, 666965, 697748, 731510, 872185, 1067144, 1333930, 1395496, 1463020, 1744370, 2267681, 2667860, 2926040, 3488740, 4535362, 5335720, 6977480, 9070724, 11338405, 18141448, 22676810, 45353620, 90707240]

約数ペア:

[(1, 90707240), (2, 45353620), (4, 22676810), (5, 18141448), (8, 11338405), (10, 9070724), (13, 6977480), (17, 5335720), (20, 4535362), (26, 3488740), (31, 2926040), (34, 2667860), (40, 2267681), (52, 1744370), (62, 1463020), (65, 1395496), (68, 1333930), (85, 1067144), (104, 872185), (124, 731510), (130, 697748), (136, 666965), (155, 585208), (170, 533572), (221, 410440), (248, 365755), (260, 348874), (310, 292604), (331, 274040), (340, 266786), (403, 225080), (442, 205220), (520, 174437), (527, 172120), (620, 146302), (662, 137020), (680, 133393), (806, 112540), (884, 102610), (1054, 86060), (1105, 82088), (1240, 73151), (1324, 68510), (1612, 56270), (1655, 54808), (1768, 51305), (2015, 45016), (2108, 43030), (2210, 41044), (2635, 34424), (2648, 34255), (3224, 28135), (3310, 27404), (4030, 22508), (4216, 21515), (4303, 21080), (4420, 20522), (5270, 17212), (5627, 16120), (6620, 13702), (6851, 13240), (8060, 11254), (8606, 10540), (8840, 10261)]