28800280

素因数分解:

$2^3\times 5^1\times {\mathrm{720007}}^1$

素因数の和:720018

約数の個数: 16

約数和(自身を含む): 64800720

約数和(自身を除く): 36000440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 720007, 1440014, 2880028, 3600035, 5760056, 7200070, 14400140, 28800280]

約数ペア:

[(1, 28800280), (2, 14400140), (4, 7200070), (5, 5760056), (8, 3600035), (10, 2880028), (20, 1440014), (40, 720007)]