381623980

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{18911}}^1$

素因数の和:19929

約数の個数: 24

約数和(自身を含む): 802247040

約数和(自身を除く): 420623060

約数列:

[1, 2, 4, 5, 10, 20, 1009, 2018, 4036, 5045, 10090, 18911, 20180, 37822, 75644, 94555, 189110, 378220, 19081199, 38162398, 76324796, 95405995, 190811990, 381623980]

約数ペア:

[(1, 381623980), (2, 190811990), (4, 95405995), (5, 76324796), (10, 38162398), (20, 19081199), (1009, 378220), (2018, 189110), (4036, 94555), (5045, 75644), (10090, 37822), (18911, 20180)]