31585780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19991}}^1$

素因数の和:20079

約数の個数: 24

約数和(自身を含む): 67173120

約数和(自身を除く): 35587340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19991, 39982, 79964, 99955, 199910, 399820, 1579289, 3158578, 6317156, 7896445, 15792890, 31585780]

約数ペア:

[(1, 31585780), (2, 15792890), (4, 7896445), (5, 6317156), (10, 3158578), (20, 1579289), (79, 399820), (158, 199910), (316, 99955), (395, 79964), (790, 39982), (1580, 19991)]