20228440

素因数分解:

$2^3\times 5^1\times {\mathrm{505711}}^1$

素因数の和:505722

約数の個数: 16

約数和(自身を含む): 45514080

約数和(自身を除く): 25285640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505711, 1011422, 2022844, 2528555, 4045688, 5057110, 10114220, 20228440]

約数ペア:

[(1, 20228440), (2, 10114220), (4, 5057110), (5, 4045688), (8, 2528555), (10, 2022844), (20, 1011422), (40, 505711)]