79922890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^2\times {\mathrm{1009}}^1$

素因数の和:1194

約数の個数: 24

約数和(自身を含む): 145639980

約数和(自身を除く): 65717090

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 1009, 2018, 5045, 7921, 10090, 15842, 39605, 79210, 89801, 179602, 449005, 898010, 7992289, 15984578, 39961445, 79922890]

約数ペア:

[(1, 79922890), (2, 39961445), (5, 15984578), (10, 7992289), (89, 898010), (178, 449005), (445, 179602), (890, 89801), (1009, 79210), (2018, 39605), (5045, 15842), (7921, 10090)]