87671980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{398509}}^1$

素因数の和:398529

約数の個数: 24

約数和(自身を含む): 200849040

約数和(自身を除く): 113177060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 398509, 797018, 1594036, 1992545, 3985090, 4383599, 7970180, 8767198, 17534396, 21917995, 43835990, 87671980]

約数ペア:

[(1, 87671980), (2, 43835990), (4, 21917995), (5, 17534396), (10, 8767198), (11, 7970180), (20, 4383599), (22, 3985090), (44, 1992545), (55, 1594036), (110, 797018), (220, 398509)]