20007245

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{4451}}^1$

素因数の和:4516

約数の個数: 16

約数和(自身を含む): 25643520

約数和(自身を除く): 5636275

約数列:

[1, 5, 29, 31, 145, 155, 899, 4451, 4495, 22255, 129079, 137981, 645395, 689905, 4001449, 20007245]

約数ペア:

[(1, 20007245), (5, 4001449), (29, 689905), (31, 645395), (145, 137981), (155, 129079), (899, 22255), (4451, 4495)]