12800080

素因数分解:

$2^4\times 5^1\times {\mathrm{160001}}^1$

素因数の和:160014

約数の個数: 20

約数和(自身を含む): 29760372

約数和(自身を除く): 16960292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160001, 320002, 640004, 800005, 1280008, 1600010, 2560016, 3200020, 6400040, 12800080]

約数ペア:

[(1, 12800080), (2, 6400040), (4, 3200020), (5, 2560016), (8, 1600010), (10, 1280008), (16, 800005), (20, 640004), (40, 320002), (80, 160001)]