129120560

素因数分解:

$2^4\times 5^1\times {\mathrm{1614007}}^1$

素因数の和:1614020

約数の個数: 20

約数和(自身を含む): 300205488

約数和(自身を除く): 171084928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1614007, 3228014, 6456028, 8070035, 12912056, 16140070, 25824112, 32280140, 64560280, 129120560]

約数ペア:

[(1, 129120560), (2, 64560280), (4, 32280140), (5, 25824112), (8, 16140070), (10, 12912056), (16, 8070035), (20, 6456028), (40, 3228014), (80, 1614007)]