31286420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{142211}}^1$

素因数の和:142231

約数の個数: 24

約数和(自身を含む): 71674848

約数和(自身を除く): 40388428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 142211, 284422, 568844, 711055, 1422110, 1564321, 2844220, 3128642, 6257284, 7821605, 15643210, 31286420]

約数ペア:

[(1, 31286420), (2, 15643210), (4, 7821605), (5, 6257284), (10, 3128642), (11, 2844220), (20, 1564321), (22, 1422110), (44, 711055), (55, 568844), (110, 284422), (220, 142211)]