20171910520

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5666267}}^1$

素因数の和:5666367

約数の個数: 32

約数和(自身を含む): 45896770800

約数和(自身を除く): 25724860280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5666267, 11332534, 22665068, 28331335, 45330136, 56662670, 113325340, 226650680, 504297763, 1008595526, 2017191052, 2521488815, 4034382104, 5042977630, 10085955260, 20171910520]

約数ペア:

[(1, 20171910520), (2, 10085955260), (4, 5042977630), (5, 4034382104), (8, 2521488815), (10, 2017191052), (20, 1008595526), (40, 504297763), (89, 226650680), (178, 113325340), (356, 56662670), (445, 45330136), (712, 28331335), (890, 22665068), (1780, 11332534), (3560, 5666267)]