20412845

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1277}}^1$

素因数の和:1444

約数の個数: 16

約数和(自身を含む): 25764480

約数和(自身を除く): 5351635

約数列:

[1, 5, 23, 115, 139, 695, 1277, 3197, 6385, 15985, 29371, 146855, 177503, 887515, 4082569, 20412845]

約数ペア:

[(1, 20412845), (5, 4082569), (23, 887515), (115, 177503), (139, 146855), (695, 29371), (1277, 15985), (3197, 6385)]