251285420

素因数分解:

$2^2\times 5^1\times {\mathrm{1583}}^1\times {\mathrm{7937}}^1$

素因数の和:9529

約数の個数: 24

約数和(自身を含む): 528099264

約数和(自身を除く): 276813844

約数列:

[1, 2, 4, 5, 10, 20, 1583, 3166, 6332, 7915, 7937, 15830, 15874, 31660, 31748, 39685, 79370, 158740, 12564271, 25128542, 50257084, 62821355, 125642710, 251285420]

約数ペア:

[(1, 251285420), (2, 125642710), (4, 62821355), (5, 50257084), (10, 25128542), (20, 12564271), (1583, 158740), (3166, 79370), (6332, 39685), (7915, 31748), (7937, 31660), (15830, 15874)]