128484220

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{10181}}^1$

素因数の和:10821

約数の個数: 24

約数和(自身を含む): 270271008

約数和(自身を除く): 141786788

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 6310, 10181, 12620, 20362, 40724, 50905, 101810, 203620, 6424211, 12848422, 25696844, 32121055, 64242110, 128484220]

約数ペア:

[(1, 128484220), (2, 64242110), (4, 32121055), (5, 25696844), (10, 12848422), (20, 6424211), (631, 203620), (1262, 101810), (2524, 50905), (3155, 40724), (6310, 20362), (10181, 12620)]