90316520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{322559}}^1$

素因数の和:322577

約数の個数: 32

約数和(自身を含む): 232243200

約数和(自身を除く): 141926680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 322559, 645118, 1290236, 1612795, 2257913, 2580472, 3225590, 4515826, 6451180, 9031652, 11289565, 12902360, 18063304, 22579130, 45158260, 90316520]

約数ペア:

[(1, 90316520), (2, 45158260), (4, 22579130), (5, 18063304), (7, 12902360), (8, 11289565), (10, 9031652), (14, 6451180), (20, 4515826), (28, 3225590), (35, 2580472), (40, 2257913), (56, 1612795), (70, 1290236), (140, 645118), (280, 322559)]