254086120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{80407}}^1$

素因数の和:80497

約数の個数: 32

約数和(自身を含む): 578937600

約数和(自身を除く): 324851480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 80407, 160814, 321628, 402035, 643256, 804070, 1608140, 3216280, 6352153, 12704306, 25408612, 31760765, 50817224, 63521530, 127043060, 254086120]

約数ペア:

[(1, 254086120), (2, 127043060), (4, 63521530), (5, 50817224), (8, 31760765), (10, 25408612), (20, 12704306), (40, 6352153), (79, 3216280), (158, 1608140), (316, 804070), (395, 643256), (632, 402035), (790, 321628), (1580, 160814), (3160, 80407)]