40890040

素因数分解:

$2^3\times 5^1\times {\mathrm{1022251}}^1$

素因数の和:1022262

約数の個数: 16

約数和(自身を含む): 92002680

約数和(自身を除く): 51112640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1022251, 2044502, 4089004, 5111255, 8178008, 10222510, 20445020, 40890040]

約数ペア:

[(1, 40890040), (2, 20445020), (4, 10222510), (5, 8178008), (8, 5111255), (10, 4089004), (20, 2044502), (40, 1022251)]