72810520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{38729}}^1$

素因数の和:38787

約数の個数: 32

約数和(自身を含む): 167313600

約数和(自身を除く): 94503080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 38729, 77458, 154916, 193645, 309832, 387290, 774580, 1549160, 1820263, 3640526, 7281052, 9101315, 14562104, 18202630, 36405260, 72810520]

約数ペア:

[(1, 72810520), (2, 36405260), (4, 18202630), (5, 14562104), (8, 9101315), (10, 7281052), (20, 3640526), (40, 1820263), (47, 1549160), (94, 774580), (188, 387290), (235, 309832), (376, 193645), (470, 154916), (940, 77458), (1880, 38729)]