128683540

素因数分解:

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

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 287101584

約数和(自身を除く): 158418044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 461, 821, 922, 1642, 1844, 2305, 3284, 4105, 4610, 7837, 8210, 9220, 13957, 15674, 16420, 27914, 31348, 39185, 55828, 69785, 78370, 139570, 156740, 279140, 378481, 756962, 1513924, 1892405, 3784810, 6434177, 7569620, 12868354, 25736708, 32170885, 64341770, 128683540]

約数ペア:

[(1, 128683540), (2, 64341770), (4, 32170885), (5, 25736708), (10, 12868354), (17, 7569620), (20, 6434177), (34, 3784810), (68, 1892405), (85, 1513924), (170, 756962), (340, 378481), (461, 279140), (821, 156740), (922, 139570), (1642, 78370), (1844, 69785), (2305, 55828), (3284, 39185), (4105, 31348), (4610, 27914), (7837, 16420), (8210, 15674), (9220, 13957)]