87203420

素因数分解:

$2^2\times 5^1\times {\mathrm{4360171}}^1$

素因数の和:4360180

約数の個数: 12

約数和(自身を含む): 183127224

約数和(自身を除く): 95923804

約数列:

[1, 2, 4, 5, 10, 20, 4360171, 8720342, 17440684, 21800855, 43601710, 87203420]

約数ペア:

[(1, 87203420), (2, 43601710), (4, 21800855), (5, 17440684), (10, 8720342), (20, 4360171)]