129586280

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{12907}}^1$

素因数の和:13169

約数の個数: 32

約数和(自身を含む): 292753440

約数和(自身を除く): 163167160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 12907, 25814, 51628, 64535, 103256, 129070, 258140, 516280, 3239657, 6479314, 12958628, 16198285, 25917256, 32396570, 64793140, 129586280]

約数ペア:

[(1, 129586280), (2, 64793140), (4, 32396570), (5, 25917256), (8, 16198285), (10, 12958628), (20, 6479314), (40, 3239657), (251, 516280), (502, 258140), (1004, 129070), (1255, 103256), (2008, 64535), (2510, 51628), (5020, 25814), (10040, 12907)]