51604360

素因数分解:

$2^3\times 5^1\times {\mathrm{1290109}}^1$

素因数の和:1290120

約数の個数: 16

約数和(自身を含む): 116109900

約数和(自身を除く): 64505540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1290109, 2580218, 5160436, 6450545, 10320872, 12901090, 25802180, 51604360]

約数ペア:

[(1, 51604360), (2, 25802180), (4, 12901090), (5, 10320872), (8, 6450545), (10, 5160436), (20, 2580218), (40, 1290109)]