33778820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{21379}}^1$

素因数の和:21467

約数の個数: 24

約数和(自身を含む): 71836800

約数和(自身を除く): 38057980

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 21379, 42758, 85516, 106895, 213790, 427580, 1688941, 3377882, 6755764, 8444705, 16889410, 33778820]

約数ペア:

[(1, 33778820), (2, 16889410), (4, 8444705), (5, 6755764), (10, 3377882), (20, 1688941), (79, 427580), (158, 213790), (316, 106895), (395, 85516), (790, 42758), (1580, 21379)]