8365640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5101}}^1$

素因数の和:5153

約数の個数: 32

約数和(自身を含む): 19285560

約数和(自身を除く): 10919920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 5101, 10202, 20404, 25505, 40808, 51010, 102020, 204040, 209141, 418282, 836564, 1045705, 1673128, 2091410, 4182820, 8365640]

約数ペア:

[(1, 8365640), (2, 4182820), (4, 2091410), (5, 1673128), (8, 1045705), (10, 836564), (20, 418282), (40, 209141), (41, 204040), (82, 102020), (164, 51010), (205, 40808), (328, 25505), (410, 20404), (820, 10202), (1640, 5101)]