31396420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{142711}}^1$

素因数の和:142731

約数の個数: 24

約数和(自身を含む): 71926848

約数和(自身を除く): 40530428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 142711, 285422, 570844, 713555, 1427110, 1569821, 2854220, 3139642, 6279284, 7849105, 15698210, 31396420]

約数ペア:

[(1, 31396420), (2, 15698210), (4, 7849105), (5, 6279284), (10, 3139642), (11, 2854220), (20, 1569821), (22, 1427110), (44, 713555), (55, 570844), (110, 285422), (220, 142711)]