20490388

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{1063}}^1$

素因数の和:1207

約数の個数: 24

約数和(自身を含む): 36942080

約数和(自身を除く): 16451692

約数列:

[1, 2, 4, 61, 79, 122, 158, 244, 316, 1063, 2126, 4252, 4819, 9638, 19276, 64843, 83977, 129686, 167954, 259372, 335908, 5122597, 10245194, 20490388]

約数ペア:

[(1, 20490388), (2, 10245194), (4, 5122597), (61, 335908), (79, 259372), (122, 167954), (158, 129686), (244, 83977), (316, 64843), (1063, 19276), (2126, 9638), (4252, 4819)]