20510830

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{661}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 38607840

約数和(自身を除く): 18097010

約数列:

[1, 2, 5, 10, 29, 58, 107, 145, 214, 290, 535, 661, 1070, 1322, 3103, 3305, 6206, 6610, 15515, 19169, 31030, 38338, 70727, 95845, 141454, 191690, 353635, 707270, 2051083, 4102166, 10255415, 20510830]

約数ペア:

[(1, 20510830), (2, 10255415), (5, 4102166), (10, 2051083), (29, 707270), (58, 353635), (107, 191690), (145, 141454), (214, 95845), (290, 70727), (535, 38338), (661, 31030), (1070, 19169), (1322, 15515), (3103, 6610), (3305, 6206)]