210880720

素因数分解:

$2^4\times 5^1\times {\mathrm{2636009}}^1$

素因数の和:2636022

約数の個数: 20

約数和(自身を含む): 490297860

約数和(自身を除く): 279417140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2636009, 5272018, 10544036, 13180045, 21088072, 26360090, 42176144, 52720180, 105440360, 210880720]

約数ペア:

[(1, 210880720), (2, 105440360), (4, 52720180), (5, 42176144), (8, 26360090), (10, 21088072), (16, 13180045), (20, 10544036), (40, 5272018), (80, 2636009)]