123168520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{42181}}^1$

素因数の和:42265

約数の個数: 32

約数和(自身を含む): 280932120

約数和(自身を除く): 157763600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 42181, 84362, 168724, 210905, 337448, 421810, 843620, 1687240, 3079213, 6158426, 12316852, 15396065, 24633704, 30792130, 61584260, 123168520]

約数ペア:

[(1, 123168520), (2, 61584260), (4, 30792130), (5, 24633704), (8, 15396065), (10, 12316852), (20, 6158426), (40, 3079213), (73, 1687240), (146, 843620), (292, 421810), (365, 337448), (584, 210905), (730, 168724), (1460, 84362), (2920, 42181)]