20704560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86269}}^1$

素因数の和:86285

約数の個数: 40

約数和(自身を含む): 64184880

約数和(自身を除く): 43480320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86269, 172538, 258807, 345076, 431345, 517614, 690152, 862690, 1035228, 1294035, 1380304, 1725380, 2070456, 2588070, 3450760, 4140912, 5176140, 6901520, 10352280, 20704560]

約数ペア:

[(1, 20704560), (2, 10352280), (3, 6901520), (4, 5176140), (5, 4140912), (6, 3450760), (8, 2588070), (10, 2070456), (12, 1725380), (15, 1380304), (16, 1294035), (20, 1035228), (24, 862690), (30, 690152), (40, 517614), (48, 431345), (60, 345076), (80, 258807), (120, 172538), (240, 86269)]