257367080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{821}}^1$

素因数の和:1310

約数の個数: 64

約数和(自身を含む): 615217680

約数和(自身を除く): 357850600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 461, 680, 821, 922, 1642, 1844, 2305, 3284, 3688, 4105, 4610, 6568, 7837, 8210, 9220, 13957, 15674, 16420, 18440, 27914, 31348, 32840, 39185, 55828, 62696, 69785, 78370, 111656, 139570, 156740, 279140, 313480, 378481, 558280, 756962, 1513924, 1892405, 3027848, 3784810, 6434177, 7569620, 12868354, 15139240, 25736708, 32170885, 51473416, 64341770, 128683540, 257367080]

約数ペア:

[(1, 257367080), (2, 128683540), (4, 64341770), (5, 51473416), (8, 32170885), (10, 25736708), (17, 15139240), (20, 12868354), (34, 7569620), (40, 6434177), (68, 3784810), (85, 3027848), (136, 1892405), (170, 1513924), (340, 756962), (461, 558280), (680, 378481), (821, 313480), (922, 279140), (1642, 156740), (1844, 139570), (2305, 111656), (3284, 78370), (3688, 69785), (4105, 62696), (4610, 55828), (6568, 39185), (7837, 32840), (8210, 31348), (9220, 27914), (13957, 18440), (15674, 16420)]