80785460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1439}}^1$

素因数の和:1856

約数の個数: 48

約数和(自身を含む): 194503680

約数和(自身を除く): 113718220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 401, 802, 1439, 1604, 2005, 2807, 2878, 4010, 5614, 5756, 7195, 8020, 10073, 11228, 14035, 14390, 20146, 28070, 28780, 40292, 50365, 56140, 100730, 201460, 577039, 1154078, 2308156, 2885195, 4039273, 5770390, 8078546, 11540780, 16157092, 20196365, 40392730, 80785460]

約数ペア:

[(1, 80785460), (2, 40392730), (4, 20196365), (5, 16157092), (7, 11540780), (10, 8078546), (14, 5770390), (20, 4039273), (28, 2885195), (35, 2308156), (70, 1154078), (140, 577039), (401, 201460), (802, 100730), (1439, 56140), (1604, 50365), (2005, 40292), (2807, 28780), (2878, 28070), (4010, 20146), (5614, 14390), (5756, 14035), (7195, 11228), (8020, 10073)]