139107640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{496813}}^1$

素因数の和:496831

約数の個数: 32

約数和(自身を含む): 357706080

約数和(自身を除く): 218598440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 496813, 993626, 1987252, 2484065, 3477691, 3974504, 4968130, 6955382, 9936260, 13910764, 17388455, 19872520, 27821528, 34776910, 69553820, 139107640]

約数ペア:

[(1, 139107640), (2, 69553820), (4, 34776910), (5, 27821528), (7, 19872520), (8, 17388455), (10, 13910764), (14, 9936260), (20, 6955382), (28, 4968130), (35, 3974504), (40, 3477691), (56, 2484065), (70, 1987252), (140, 993626), (280, 496813)]