87273640

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5441}}^1$

素因数の和:5853

約数の個数: 32

約数和(自身を含む): 196891560

約数和(自身を除く): 109617920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 5441, 8020, 10882, 16040, 21764, 27205, 43528, 54410, 108820, 217640, 2181841, 4363682, 8727364, 10909205, 17454728, 21818410, 43636820, 87273640]

約数ペア:

[(1, 87273640), (2, 43636820), (4, 21818410), (5, 17454728), (8, 10909205), (10, 8727364), (20, 4363682), (40, 2181841), (401, 217640), (802, 108820), (1604, 54410), (2005, 43528), (3208, 27205), (4010, 21764), (5441, 16040), (8020, 10882)]