123442040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{50591}}^1$

素因数の和:50663

約数の個数: 32

約数和(自身を含む): 282303360

約数和(自身を除く): 158861320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 50591, 101182, 202364, 252955, 404728, 505910, 1011820, 2023640, 3086051, 6172102, 12344204, 15430255, 24688408, 30860510, 61721020, 123442040]

約数ペア:

[(1, 123442040), (2, 61721020), (4, 30860510), (5, 24688408), (8, 15430255), (10, 12344204), (20, 6172102), (40, 3086051), (61, 2023640), (122, 1011820), (244, 505910), (305, 404728), (488, 252955), (610, 202364), (1220, 101182), (2440, 50591)]