22155550

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^2$

素因数の和:241

約数の個数: 36

約数和(自身を含む): 42325416

約数和(自身を除く): 20169866

約数列:

[1, 2, 5, 10, 25, 50, 71, 79, 142, 158, 355, 395, 710, 790, 1775, 1975, 3550, 3950, 5609, 6241, 11218, 12482, 28045, 31205, 56090, 62410, 140225, 156025, 280450, 312050, 443111, 886222, 2215555, 4431110, 11077775, 22155550]

約数ペア:

[(1, 22155550), (2, 11077775), (5, 4431110), (10, 2215555), (25, 886222), (50, 443111), (71, 312050), (79, 280450), (142, 156025), (158, 140225), (355, 62410), (395, 56090), (710, 31205), (790, 28045), (1775, 12482), (1975, 11218), (3550, 6241), (3950, 5609)]