258698740

素因数分解:

$2^2\times 5^1\times {\mathrm{1553}}^1\times {\mathrm{8329}}^1$

素因数の和:9891

約数の個数: 24

約数和(自身を含む): 543682440

約数和(自身を除く): 284983700

約数列:

[1, 2, 4, 5, 10, 20, 1553, 3106, 6212, 7765, 8329, 15530, 16658, 31060, 33316, 41645, 83290, 166580, 12934937, 25869874, 51739748, 64674685, 129349370, 258698740]

約数ペア:

[(1, 258698740), (2, 129349370), (4, 64674685), (5, 51739748), (10, 25869874), (20, 12934937), (1553, 166580), (3106, 83290), (6212, 41645), (7765, 33316), (8329, 31060), (15530, 16658)]