71278420

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{13151}}^1$

素因数の和:13431

約数の個数: 24

約数和(自身を含む): 150248448

約数和(自身を除く): 78970028

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 13151, 26302, 52604, 65755, 131510, 263020, 3563921, 7127842, 14255684, 17819605, 35639210, 71278420]

約数ペア:

[(1, 71278420), (2, 35639210), (4, 17819605), (5, 14255684), (10, 7127842), (20, 3563921), (271, 263020), (542, 131510), (1084, 65755), (1355, 52604), (2710, 26302), (5420, 13151)]