20402830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7109}}^1$

素因数の和:7164

約数の個数: 32

約数和(自身を含む): 43001280

約数和(自身を除く): 22598450

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 7109, 14218, 35545, 49763, 71090, 99526, 248815, 291469, 497630, 582938, 1457345, 2040283, 2914690, 4080566, 10201415, 20402830]

約数ペア:

[(1, 20402830), (2, 10201415), (5, 4080566), (7, 2914690), (10, 2040283), (14, 1457345), (35, 582938), (41, 497630), (70, 291469), (82, 248815), (205, 99526), (287, 71090), (410, 49763), (574, 35545), (1435, 14218), (2870, 7109)]