19905695

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{967}}^1$

素因数の和:1174

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 5184865

約数列:

[1, 5, 23, 115, 179, 895, 967, 4117, 4835, 20585, 22241, 111205, 173093, 865465, 3981139, 19905695]

約数ペア:

[(1, 19905695), (5, 3981139), (23, 865465), (115, 173093), (179, 111205), (895, 22241), (967, 20585), (4117, 4835)]