20184567940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12775043}}^1$

素因数の和:12775131

約数の個数: 24

約数和(自身を含む): 42924147840

約数和(自身を除く): 22739579900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12775043, 25550086, 51100172, 63875215, 127750430, 255500860, 1009228397, 2018456794, 4036913588, 5046141985, 10092283970, 20184567940]

約数ペア:

[(1, 20184567940), (2, 10092283970), (4, 5046141985), (5, 4036913588), (10, 2018456794), (20, 1009228397), (79, 255500860), (158, 127750430), (316, 63875215), (395, 51100172), (790, 25550086), (1580, 12775043)]