40290290

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98269}}^1$

素因数の和:98317

約数の個数: 16

約数和(自身を含む): 74292120

約数和(自身を除く): 34001830

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 98269, 196538, 491345, 982690, 4029029, 8058058, 20145145, 40290290]

約数ペア:

[(1, 40290290), (2, 20145145), (5, 8058058), (10, 4029029), (41, 982690), (82, 491345), (205, 196538), (410, 98269)]