18455980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11681}}^1$

素因数の和:11769

約数の個数: 24

約数和(自身を含む): 39251520

約数和(自身を除く): 20795540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11681, 23362, 46724, 58405, 116810, 233620, 922799, 1845598, 3691196, 4613995, 9227990, 18455980]

約数ペア:

[(1, 18455980), (2, 9227990), (4, 4613995), (5, 3691196), (10, 1845598), (20, 922799), (79, 233620), (158, 116810), (316, 58405), (395, 46724), (790, 23362), (1580, 11681)]