498980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 1067640

約数和(自身を除く): 568660

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 409, 610, 818, 1220, 1636, 2045, 4090, 8180, 24949, 49898, 99796, 124745, 249490, 498980]

約数ペア:

[(1, 498980), (2, 249490), (4, 124745), (5, 99796), (10, 49898), (20, 24949), (61, 8180), (122, 4090), (244, 2045), (305, 1636), (409, 1220), (610, 818)]