19856840

素因数分解:

$2^3\times 5^1\times {\mathrm{467}}^1\times {\mathrm{1063}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 44815680

約数和(自身を除く): 24958840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 467, 934, 1063, 1868, 2126, 2335, 3736, 4252, 4670, 5315, 8504, 9340, 10630, 18680, 21260, 42520, 496421, 992842, 1985684, 2482105, 3971368, 4964210, 9928420, 19856840]

約数ペア:

[(1, 19856840), (2, 9928420), (4, 4964210), (5, 3971368), (8, 2482105), (10, 1985684), (20, 992842), (40, 496421), (467, 42520), (934, 21260), (1063, 18680), (1868, 10630), (2126, 9340), (2335, 8504), (3736, 5315), (4252, 4670)]