213020120

素因数分解:

$2^3\times 5^1\times {\mathrm{5325503}}^1$

素因数の和:5325514

約数の個数: 16

約数和(自身を含む): 479295360

約数和(自身を除く): 266275240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5325503, 10651006, 21302012, 26627515, 42604024, 53255030, 106510060, 213020120]

約数ペア:

[(1, 213020120), (2, 106510060), (4, 53255030), (5, 42604024), (8, 26627515), (10, 21302012), (20, 10651006), (40, 5325503)]