81377416

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{1619}}^1$

素因数の和:1789

約数の個数: 32

約数和(自身を含む): 156686400

約数和(自身を除く): 75308984

約数列:

[1, 2, 4, 8, 61, 103, 122, 206, 244, 412, 488, 824, 1619, 3238, 6283, 6476, 12566, 12952, 25132, 50264, 98759, 166757, 197518, 333514, 395036, 667028, 790072, 1334056, 10172177, 20344354, 40688708, 81377416]

約数ペア:

[(1, 81377416), (2, 40688708), (4, 20344354), (8, 10172177), (61, 1334056), (103, 790072), (122, 667028), (206, 395036), (244, 333514), (412, 197518), (488, 166757), (824, 98759), (1619, 50264), (3238, 25132), (6283, 12952), (6476, 12566)]