212868520

素因数分解:

$2^3\times 5^1\times {\mathrm{5321713}}^1$

素因数の和:5321724

約数の個数: 16

約数和(自身を含む): 478954260

約数和(自身を除く): 266085740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5321713, 10643426, 21286852, 26608565, 42573704, 53217130, 106434260, 212868520]

約数ペア:

[(1, 212868520), (2, 106434260), (4, 53217130), (5, 42573704), (8, 26608565), (10, 21286852), (20, 10643426), (40, 5321713)]