20373640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72763}}^1$

素因数の和:72781

約数の個数: 32

約数和(自身を含む): 52390080

約数和(自身を除く): 32016440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72763, 145526, 291052, 363815, 509341, 582104, 727630, 1018682, 1455260, 2037364, 2546705, 2910520, 4074728, 5093410, 10186820, 20373640]

約数ペア:

[(1, 20373640), (2, 10186820), (4, 5093410), (5, 4074728), (7, 2910520), (8, 2546705), (10, 2037364), (14, 1455260), (20, 1018682), (28, 727630), (35, 582104), (40, 509341), (56, 363815), (70, 291052), (140, 145526), (280, 72763)]