28751420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{821}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 64628928

約数和(自身を除く): 35877508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 206, 340, 412, 515, 821, 1030, 1642, 1751, 2060, 3284, 3502, 4105, 7004, 8210, 8755, 13957, 16420, 17510, 27914, 35020, 55828, 69785, 84563, 139570, 169126, 279140, 338252, 422815, 845630, 1437571, 1691260, 2875142, 5750284, 7187855, 14375710, 28751420]

約数ペア:

[(1, 28751420), (2, 14375710), (4, 7187855), (5, 5750284), (10, 2875142), (17, 1691260), (20, 1437571), (34, 845630), (68, 422815), (85, 338252), (103, 279140), (170, 169126), (206, 139570), (340, 84563), (412, 69785), (515, 55828), (821, 35020), (1030, 27914), (1642, 17510), (1751, 16420), (2060, 13957), (3284, 8755), (3502, 8210), (4105, 7004)]