253960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{907}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 653760

約数和(自身を除く): 399800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 907, 1814, 3628, 4535, 6349, 7256, 9070, 12698, 18140, 25396, 31745, 36280, 50792, 63490, 126980, 253960]

約数ペア:

[(1, 253960), (2, 126980), (4, 63490), (5, 50792), (7, 36280), (8, 31745), (10, 25396), (14, 18140), (20, 12698), (28, 9070), (35, 7256), (40, 6349), (56, 4535), (70, 3628), (140, 1814), (280, 907)]