71809240

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{15887}}^1$

素因数の和:16011

約数の個数: 32

約数和(自身を含む): 163010880

約数和(自身を除く): 91201640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 15887, 31774, 63548, 79435, 127096, 158870, 317740, 635480, 1795231, 3590462, 7180924, 8976155, 14361848, 17952310, 35904620, 71809240]

約数ペア:

[(1, 71809240), (2, 35904620), (4, 17952310), (5, 14361848), (8, 8976155), (10, 7180924), (20, 3590462), (40, 1795231), (113, 635480), (226, 317740), (452, 158870), (565, 127096), (904, 79435), (1130, 63548), (2260, 31774), (4520, 15887)]