64560280

素因数分解:

$2^3\times 5^1\times {\mathrm{1614007}}^1$

素因数の和:1614018

約数の個数: 16

約数和(自身を含む): 145260720

約数和(自身を除く): 80700440

約数列:

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

約数ペア:

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