20788505

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1\times {\mathrm{467}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 25945920

約数和(自身を除く): 5157415

約数列:

[1, 5, 29, 145, 307, 467, 1535, 2335, 8903, 13543, 44515, 67715, 143369, 716845, 4157701, 20788505]

約数ペア:

[(1, 20788505), (5, 4157701), (29, 716845), (145, 143369), (307, 67715), (467, 44515), (1535, 13543), (2335, 8903)]