20426050

素因数分解:

$2^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2939}}^1$

素因数の和:3090

約数の個数: 24

約数和(自身を含む): 38278800

約数和(自身を除く): 17852750

約数列:

[1, 2, 5, 10, 25, 50, 139, 278, 695, 1390, 2939, 3475, 5878, 6950, 14695, 29390, 73475, 146950, 408521, 817042, 2042605, 4085210, 10213025, 20426050]

約数ペア:

[(1, 20426050), (2, 10213025), (5, 4085210), (10, 2042605), (25, 817042), (50, 408521), (139, 146950), (278, 73475), (695, 29390), (1390, 14695), (2939, 6950), (3475, 5878)]