71308840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43481}}^1$

素因数の和:43533

約数の個数: 32

約数和(自身を含む): 164361960

約数和(自身を除く): 93053120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 43481, 86962, 173924, 217405, 347848, 434810, 869620, 1739240, 1782721, 3565442, 7130884, 8913605, 14261768, 17827210, 35654420, 71308840]

約数ペア:

[(1, 71308840), (2, 35654420), (4, 17827210), (5, 14261768), (8, 8913605), (10, 7130884), (20, 3565442), (40, 1782721), (41, 1739240), (82, 869620), (164, 434810), (205, 347848), (328, 217405), (410, 173924), (820, 86962), (1640, 43481)]