31240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:93

約数の個数: 32

約数和(自身を含む): 77760

約数和(自身を除く): 46520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2840, 3124, 3905, 6248, 7810, 15620, 31240]

約数ペア:

[(1, 31240), (2, 15620), (4, 7810), (5, 6248), (8, 3905), (10, 3124), (11, 2840), (20, 1562), (22, 1420), (40, 781), (44, 710), (55, 568), (71, 440), (88, 355), (110, 284), (142, 220)]