81017584

素因数分解:

$2^4\times {\mathrm{521}}^1\times {\mathrm{9719}}^1$

素因数の和:10248

約数の個数: 20

約数和(自身を含む): 157289040

約数和(自身を除く): 76271456

約数列:

[1, 2, 4, 8, 16, 521, 1042, 2084, 4168, 8336, 9719, 19438, 38876, 77752, 155504, 5063599, 10127198, 20254396, 40508792, 81017584]

約数ペア:

[(1, 81017584), (2, 40508792), (4, 20254396), (8, 10127198), (16, 5063599), (521, 155504), (1042, 77752), (2084, 38876), (4168, 19438), (8336, 9719)]