87881380

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{6359}}^1$

素因数の和:7059

約数の個数: 24

約数和(自身を含む): 184847040

約数和(自身を除く): 96965660

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 6359, 6910, 12718, 13820, 25436, 31795, 63590, 127180, 4394069, 8788138, 17576276, 21970345, 43940690, 87881380]

約数ペア:

[(1, 87881380), (2, 43940690), (4, 21970345), (5, 17576276), (10, 8788138), (20, 4394069), (691, 127180), (1382, 63590), (2764, 31795), (3455, 25436), (6359, 13820), (6910, 12718)]