20805260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148609}}^1$

素因数の和:148625

約数の個数: 24

約数和(自身を含む): 49932960

約数和(自身を除く): 29127700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148609, 297218, 594436, 743045, 1040263, 1486090, 2080526, 2972180, 4161052, 5201315, 10402630, 20805260]

約数ペア:

[(1, 20805260), (2, 10402630), (4, 5201315), (5, 4161052), (7, 2972180), (10, 2080526), (14, 1486090), (20, 1040263), (28, 743045), (35, 594436), (70, 297218), (140, 148609)]