20515615

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{937}}^1$

素因数の和:1122

約数の個数: 16

約数和(自身を含む): 25663680

約数和(自身を除く): 5148065

約数列:

[1, 5, 29, 145, 151, 755, 937, 4379, 4685, 21895, 27173, 135865, 141487, 707435, 4103123, 20515615]

約数ペア:

[(1, 20515615), (5, 4103123), (29, 707435), (145, 141487), (151, 135865), (755, 27173), (937, 21895), (4379, 4685)]