20139265

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1993}}^1$

素因数の和:2088

約数の個数: 16

約数和(自身を含む): 25267968

約数和(自身を除く): 5128703

約数列:

[1, 5, 43, 47, 215, 235, 1993, 2021, 9965, 10105, 85699, 93671, 428495, 468355, 4027853, 20139265]

約数ペア:

[(1, 20139265), (5, 4027853), (43, 468355), (47, 428495), (215, 93671), (235, 85699), (1993, 10105), (2021, 9965)]