31307320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71153}}^1$

素因数の和:71175

約数の個数: 32

約数和(自身を含む): 76846320

約数和(自身を除く): 45539000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71153, 142306, 284612, 355765, 569224, 711530, 782683, 1423060, 1565366, 2846120, 3130732, 3913415, 6261464, 7826830, 15653660, 31307320]

約数ペア:

[(1, 31307320), (2, 15653660), (4, 7826830), (5, 6261464), (8, 3913415), (10, 3130732), (11, 2846120), (20, 1565366), (22, 1423060), (40, 782683), (44, 711530), (55, 569224), (88, 355765), (110, 284612), (220, 142306), (440, 71153)]