86870680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 128

約数和(自身を含む): 230791680

約数和(自身を除く): 143921000

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, 317, 340, 403, 442, 520, 527, 620, 634, 680, 806, 884, 1054, 1105, 1240, 1268, 1585, 1612, 1768, 2015, 2108, 2210, 2536, 2635, 3170, 3224, 4030, 4121, 4216, 4420, 5270, 5389, 6340, 6851, 8060, 8242, 8840, 9827, 10540, 10778, 12680, 13702, 16120, 16484, 19654, 20605, 21080, 21556, 26945, 27404, 32968, 34255, 39308, 41210, 43112, 49135, 53890, 54808, 68510, 70057, 78616, 82420, 98270, 107780, 127751, 137020, 140114, 164840, 167059, 196540, 215560, 255502, 274040, 280228, 334118, 350285, 393080, 511004, 560456, 638755, 668236, 700570, 835295, 1022008, 1277510, 1336472, 1401140, 1670590, 2171767, 2555020, 2802280, 3341180, 4343534, 5110040, 6682360, 8687068, 10858835, 17374136, 21717670, 43435340, 86870680]

約数ペア:

[(1, 86870680), (2, 43435340), (4, 21717670), (5, 17374136), (8, 10858835), (10, 8687068), (13, 6682360), (17, 5110040), (20, 4343534), (26, 3341180), (31, 2802280), (34, 2555020), (40, 2171767), (52, 1670590), (62, 1401140), (65, 1336472), (68, 1277510), (85, 1022008), (104, 835295), (124, 700570), (130, 668236), (136, 638755), (155, 560456), (170, 511004), (221, 393080), (248, 350285), (260, 334118), (310, 280228), (317, 274040), (340, 255502), (403, 215560), (442, 196540), (520, 167059), (527, 164840), (620, 140114), (634, 137020), (680, 127751), (806, 107780), (884, 98270), (1054, 82420), (1105, 78616), (1240, 70057), (1268, 68510), (1585, 54808), (1612, 53890), (1768, 49135), (2015, 43112), (2108, 41210), (2210, 39308), (2536, 34255), (2635, 32968), (3170, 27404), (3224, 26945), (4030, 21556), (4121, 21080), (4216, 20605), (4420, 19654), (5270, 16484), (5389, 16120), (6340, 13702), (6851, 12680), (8060, 10778), (8242, 10540), (8840, 9827)]