2139380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2609}}^1$

素因数の和:2659

約数の個数: 24

約数和(自身を含む): 4604040

約数和(自身を除く): 2464660

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2609, 5218, 10436, 13045, 26090, 52180, 106969, 213938, 427876, 534845, 1069690, 2139380]

約数ペア:

[(1, 2139380), (2, 1069690), (4, 534845), (5, 427876), (10, 213938), (20, 106969), (41, 52180), (82, 26090), (164, 13045), (205, 10436), (410, 5218), (820, 2609)]