31131580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21323}}^1$

素因数の和:21405

約数の個数: 24

約数和(自身を含む): 66274992

約数和(自身を除く): 35143412

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 21323, 42646, 85292, 106615, 213230, 426460, 1556579, 3113158, 6226316, 7782895, 15565790, 31131580]

約数ペア:

[(1, 31131580), (2, 15565790), (4, 7782895), (5, 6226316), (10, 3113158), (20, 1556579), (73, 426460), (146, 213230), (292, 106615), (365, 85292), (730, 42646), (1460, 21323)]