38120020

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1889}}^1$

素因数の和:2907

約数の個数: 24

約数和(自身を含む): 80173800

約数和(自身を除く): 42053780

約数列:

[1, 2, 4, 5, 10, 20, 1009, 1889, 2018, 3778, 4036, 5045, 7556, 9445, 10090, 18890, 20180, 37780, 1906001, 3812002, 7624004, 9530005, 19060010, 38120020]

約数ペア:

[(1, 38120020), (2, 19060010), (4, 9530005), (5, 7624004), (10, 3812002), (20, 1906001), (1009, 37780), (1889, 20180), (2018, 18890), (3778, 10090), (4036, 9445), (5045, 7556)]