81831460

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{38239}}^1$

素因数の和:38355

約数の個数: 24

約数和(自身を含む): 173456640

約数和(自身を除く): 91625180

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 38239, 76478, 152956, 191195, 382390, 764780, 4091573, 8183146, 16366292, 20457865, 40915730, 81831460]

約数ペア:

[(1, 81831460), (2, 40915730), (4, 20457865), (5, 16366292), (10, 8183146), (20, 4091573), (107, 764780), (214, 382390), (428, 191195), (535, 152956), (1070, 76478), (2140, 38239)]