18779995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^2\times {\mathrm{83}}^1$

素因数の和:219

約数の個数: 24

約数和(自身を含む): 24985296

約数和(自身を除く): 6205301

約数列:

[1, 5, 13, 59, 65, 83, 295, 415, 767, 1079, 3481, 3835, 4897, 5395, 17405, 24485, 45253, 63661, 226265, 288923, 318305, 1444615, 3755999, 18779995]

約数ペア:

[(1, 18779995), (5, 3755999), (13, 1444615), (59, 318305), (65, 288923), (83, 226265), (295, 63661), (415, 45253), (767, 24485), (1079, 17405), (3481, 5395), (3835, 4897)]