1280360

素因数分解:

$2^3\times 5^1\times {\mathrm{32009}}^1$

素因数の和:32020

約数の個数: 16

約数和(自身を含む): 2880900

約数和(自身を除く): 1600540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 32009, 64018, 128036, 160045, 256072, 320090, 640180, 1280360]

約数ペア:

[(1, 1280360), (2, 640180), (4, 320090), (5, 256072), (8, 160045), (10, 128036), (20, 64018), (40, 32009)]