25122920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7057}}^1$

素因数の和:7157

約数の個数: 32

約数和(自身を含む): 57169800

約数和(自身を除く): 32046880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 7057, 14114, 28228, 35285, 56456, 70570, 141140, 282280, 628073, 1256146, 2512292, 3140365, 5024584, 6280730, 12561460, 25122920]

約数ペア:

[(1, 25122920), (2, 12561460), (4, 6280730), (5, 5024584), (8, 3140365), (10, 2512292), (20, 1256146), (40, 628073), (89, 282280), (178, 141140), (356, 70570), (445, 56456), (712, 35285), (890, 28228), (1780, 14114), (3560, 7057)]