79977740

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{4943}}^1$

素因数の和:5761

約数の個数: 24

約数和(自身を含む): 168194880

約数和(自身を除く): 88217140

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 4943, 8090, 9886, 16180, 19772, 24715, 49430, 98860, 3998887, 7997774, 15995548, 19994435, 39988870, 79977740]

約数ペア:

[(1, 79977740), (2, 39988870), (4, 19994435), (5, 15995548), (10, 7997774), (20, 3998887), (809, 98860), (1618, 49430), (3236, 24715), (4045, 19772), (4943, 16180), (8090, 9886)]