215669480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:859

約数の個数: 128

約数和(自身を含む): 571898880

約数和(自身を除く): 356229400

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, 340, 403, 442, 520, 527, 620, 680, 787, 806, 884, 1054, 1105, 1240, 1574, 1612, 1768, 2015, 2108, 2210, 2635, 3148, 3224, 3935, 4030, 4216, 4420, 5270, 6296, 6851, 7870, 8060, 8840, 10231, 10540, 13379, 13702, 15740, 16120, 20462, 21080, 24397, 26758, 27404, 31480, 34255, 40924, 48794, 51155, 53516, 54808, 66895, 68510, 81848, 97588, 102310, 107032, 121985, 133790, 137020, 173927, 195176, 204620, 243970, 267580, 274040, 317161, 347854, 409240, 414749, 487940, 535160, 634322, 695708, 829498, 869635, 975880, 1268644, 1391416, 1585805, 1658996, 1739270, 2073745, 2537288, 3171610, 3317992, 3478540, 4147490, 5391737, 6343220, 6957080, 8294980, 10783474, 12686440, 16589960, 21566948, 26958685, 43133896, 53917370, 107834740, 215669480]

約数ペア:

[(1, 215669480), (2, 107834740), (4, 53917370), (5, 43133896), (8, 26958685), (10, 21566948), (13, 16589960), (17, 12686440), (20, 10783474), (26, 8294980), (31, 6957080), (34, 6343220), (40, 5391737), (52, 4147490), (62, 3478540), (65, 3317992), (68, 3171610), (85, 2537288), (104, 2073745), (124, 1739270), (130, 1658996), (136, 1585805), (155, 1391416), (170, 1268644), (221, 975880), (248, 869635), (260, 829498), (310, 695708), (340, 634322), (403, 535160), (442, 487940), (520, 414749), (527, 409240), (620, 347854), (680, 317161), (787, 274040), (806, 267580), (884, 243970), (1054, 204620), (1105, 195176), (1240, 173927), (1574, 137020), (1612, 133790), (1768, 121985), (2015, 107032), (2108, 102310), (2210, 97588), (2635, 81848), (3148, 68510), (3224, 66895), (3935, 54808), (4030, 53516), (4216, 51155), (4420, 48794), (5270, 40924), (6296, 34255), (6851, 31480), (7870, 27404), (8060, 26758), (8840, 24397), (10231, 21080), (10540, 20462), (13379, 16120), (13702, 15740)]