68898320

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1049}}^1$

素因数の和:1883

約数の個数: 40

約数和(自身を含む): 160536600

約数和(自身を除く): 91638280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1049, 1642, 2098, 3284, 4105, 4196, 5245, 6568, 8210, 8392, 10490, 13136, 16420, 16784, 20980, 32840, 41960, 65680, 83920, 861229, 1722458, 3444916, 4306145, 6889832, 8612290, 13779664, 17224580, 34449160, 68898320]

約数ペア:

[(1, 68898320), (2, 34449160), (4, 17224580), (5, 13779664), (8, 8612290), (10, 6889832), (16, 4306145), (20, 3444916), (40, 1722458), (80, 861229), (821, 83920), (1049, 65680), (1642, 41960), (2098, 32840), (3284, 20980), (4105, 16784), (4196, 16420), (5245, 13136), (6568, 10490), (8210, 8392)]