8378120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4871}}^1$

素因数の和:4925

約数の個数: 32

約数和(自身を含む): 19293120

約数和(自身を除く): 10915000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 4871, 9742, 19484, 24355, 38968, 48710, 97420, 194840, 209453, 418906, 837812, 1047265, 1675624, 2094530, 4189060, 8378120]

約数ペア:

[(1, 8378120), (2, 4189060), (4, 2094530), (5, 1675624), (8, 1047265), (10, 837812), (20, 418906), (40, 209453), (43, 194840), (86, 97420), (172, 48710), (215, 38968), (344, 24355), (430, 19484), (860, 9742), (1720, 4871)]