87609220

素因数分解:

$2^2\times 5^1\times {\mathrm{4380461}}^1$

素因数の和:4380470

約数の個数: 12

約数和(自身を含む): 183979404

約数和(自身を除く): 96370184

約数列:

[1, 2, 4, 5, 10, 20, 4380461, 8760922, 17521844, 21902305, 43804610, 87609220]

約数ペア:

[(1, 87609220), (2, 43804610), (4, 21902305), (5, 17521844), (10, 8760922), (20, 4380461)]