221432660

素因数分解:

$2^2\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{10357}}^1$

素因数の和:11435

約数の個数: 24

約数和(自身を含む): 465488520

約数和(自身を除く): 244055860

約数列:

[1, 2, 4, 5, 10, 20, 1069, 2138, 4276, 5345, 10357, 10690, 20714, 21380, 41428, 51785, 103570, 207140, 11071633, 22143266, 44286532, 55358165, 110716330, 221432660]

約数ペア:

[(1, 221432660), (2, 110716330), (4, 55358165), (5, 44286532), (10, 22143266), (20, 11071633), (1069, 207140), (2138, 103570), (4276, 51785), (5345, 41428), (10357, 21380), (10690, 20714)]