131031490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{319589}}^1$

素因数の和:319637

約数の個数: 16

約数和(自身を含む): 241610040

約数和(自身を除く): 110578550

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 319589, 639178, 1597945, 3195890, 13103149, 26206298, 65515745, 131031490]

約数ペア:

[(1, 131031490), (2, 65515745), (5, 26206298), (10, 13103149), (41, 3195890), (82, 1597945), (205, 639178), (410, 319589)]