90331640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{322613}}^1$

素因数の和:322631

約数の個数: 32

約数和(自身を含む): 232282080

約数和(自身を除く): 141950440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 322613, 645226, 1290452, 1613065, 2258291, 2580904, 3226130, 4516582, 6452260, 9033164, 11291455, 12904520, 18066328, 22582910, 45165820, 90331640]

約数ペア:

[(1, 90331640), (2, 45165820), (4, 22582910), (5, 18066328), (7, 12904520), (8, 11291455), (10, 9033164), (14, 6452260), (20, 4516582), (28, 3226130), (35, 2580904), (40, 2258291), (56, 1613065), (70, 1290452), (140, 645226), (280, 322613)]