51411348080

素因数分解:

$2^4\times 5^1\times {\mathrm{642641851}}^1$

素因数の和:642641864

約数の個数: 20

約数和(自身を含む): 119531384472

約数和(自身を除く): 68120036392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 642641851, 1285283702, 2570567404, 3213209255, 5141134808, 6426418510, 10282269616, 12852837020, 25705674040, 51411348080]

約数ペア:

[(1, 51411348080), (2, 25705674040), (4, 12852837020), (5, 10282269616), (8, 6426418510), (10, 5141134808), (16, 3213209255), (20, 2570567404), (40, 1285283702), (80, 642641851)]