20211388520

素因数分解:

$2^3\times 5^1\times {\mathrm{505284713}}^1$

素因数の和:505284724

約数の個数: 16

約数和(自身を含む): 45475624260

約数和(自身を除く): 25264235740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505284713, 1010569426, 2021138852, 2526423565, 4042277704, 5052847130, 10105694260, 20211388520]

約数ペア:

[(1, 20211388520), (2, 10105694260), (4, 5052847130), (5, 4042277704), (8, 2526423565), (10, 2021138852), (20, 1010569426), (40, 505284713)]