81933620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{132151}}^1$

素因数の和:132191

約数の個数: 24

約数和(自身を含む): 177612288

約数和(自身を除く): 95678668

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 132151, 264302, 528604, 660755, 1321510, 2643020, 4096681, 8193362, 16386724, 20483405, 40966810, 81933620]

約数ペア:

[(1, 81933620), (2, 40966810), (4, 20483405), (5, 16386724), (10, 8193362), (20, 4096681), (31, 2643020), (62, 1321510), (124, 660755), (155, 528604), (310, 264302), (620, 132151)]