88890040

素因数分解:

$2^3\times 5^1\times {\mathrm{2222251}}^1$

素因数の和:2222262

約数の個数: 16

約数和(自身を含む): 200002680

約数和(自身を除く): 111112640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2222251, 4444502, 8889004, 11111255, 17778008, 22222510, 44445020, 88890040]

約数ペア:

[(1, 88890040), (2, 44445020), (4, 22222510), (5, 17778008), (8, 11111255), (10, 8889004), (20, 4444502), (40, 2222251)]