11172880

素因数分解:

$2^4\times 5^1\times {\mathrm{139661}}^1$

素因数の和:139674

約数の個数: 20

約数和(自身を含む): 25977132

約数和(自身を除く): 14804252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139661, 279322, 558644, 698305, 1117288, 1396610, 2234576, 2793220, 5586440, 11172880]

約数ペア:

[(1, 11172880), (2, 5586440), (4, 2793220), (5, 2234576), (8, 1396610), (10, 1117288), (16, 698305), (20, 558644), (40, 279322), (80, 139661)]