1405681280

素因数分解:

$2^7\times 5^1\times {\mathrm{2196377}}^1$

素因数の和:2196396

約数の個数: 32

約数和(自身を含む): 3360458340

約数和(自身を除く): 1954777060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2196377, 4392754, 8785508, 10981885, 17571016, 21963770, 35142032, 43927540, 70284064, 87855080, 140568128, 175710160, 281136256, 351420320, 702840640, 1405681280]

約数ペア:

[(1, 1405681280), (2, 702840640), (4, 351420320), (5, 281136256), (8, 175710160), (10, 140568128), (16, 87855080), (20, 70284064), (32, 43927540), (40, 35142032), (64, 21963770), (80, 17571016), (128, 10981885), (160, 8785508), (320, 4392754), (640, 2196377)]