61434580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{28181}}^1$

素因数の和:28299

約数の個数: 24

約数和(自身を含む): 130200840

約数和(自身を除く): 68766260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 28181, 56362, 112724, 140905, 281810, 563620, 3071729, 6143458, 12286916, 15358645, 30717290, 61434580]

約数ペア:

[(1, 61434580), (2, 30717290), (4, 15358645), (5, 12286916), (10, 6143458), (20, 3071729), (109, 563620), (218, 281810), (436, 140905), (545, 112724), (1090, 56362), (2180, 28181)]