71762920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{12907}}^1$

素因数の和:13057

約数の個数: 32

約数和(自身を含む): 162640800

約数和(自身を除く): 90877880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 12907, 25814, 51628, 64535, 103256, 129070, 258140, 516280, 1794073, 3588146, 7176292, 8970365, 14352584, 17940730, 35881460, 71762920]

約数ペア:

[(1, 71762920), (2, 35881460), (4, 17940730), (5, 14352584), (8, 8970365), (10, 7176292), (20, 3588146), (40, 1794073), (139, 516280), (278, 258140), (556, 129070), (695, 103256), (1112, 64535), (1390, 51628), (2780, 25814), (5560, 12907)]