79418740

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{4007}}^1$

素因数の和:5007

約数の個数: 24

約数和(自身を含む): 166989312

約数和(自身を除く): 87570572

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4007, 4955, 8014, 9910, 16028, 19820, 20035, 40070, 80140, 3970937, 7941874, 15883748, 19854685, 39709370, 79418740]

約数ペア:

[(1, 79418740), (2, 39709370), (4, 19854685), (5, 15883748), (10, 7941874), (20, 3970937), (991, 80140), (1982, 40070), (3964, 20035), (4007, 19820), (4955, 16028), (8014, 9910)]