31885480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72467}}^1$

素因数の和:72489

約数の個数: 32

約数和(自身を含む): 78265440

約数和(自身を除く): 46379960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 72467, 144934, 289868, 362335, 579736, 724670, 797137, 1449340, 1594274, 2898680, 3188548, 3985685, 6377096, 7971370, 15942740, 31885480]

約数ペア:

[(1, 31885480), (2, 15942740), (4, 7971370), (5, 6377096), (8, 3985685), (10, 3188548), (11, 2898680), (20, 1594274), (22, 1449340), (40, 797137), (44, 724670), (55, 579736), (88, 362335), (110, 289868), (220, 144934), (440, 72467)]