2185640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{541}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 4975560

約数和(自身を除く): 2789920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 541, 808, 1010, 1082, 2020, 2164, 2705, 4040, 4328, 5410, 10820, 21640, 54641, 109282, 218564, 273205, 437128, 546410, 1092820, 2185640]

約数ペア:

[(1, 2185640), (2, 1092820), (4, 546410), (5, 437128), (8, 273205), (10, 218564), (20, 109282), (40, 54641), (101, 21640), (202, 10820), (404, 5410), (505, 4328), (541, 4040), (808, 2705), (1010, 2164), (1082, 2020)]