81349480

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{43271}}^1$

素因数の和:43329

約数の個数: 32

約数和(自身を含む): 186935040

約数和(自身を除く): 105585560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 43271, 86542, 173084, 216355, 346168, 432710, 865420, 1730840, 2033737, 4067474, 8134948, 10168685, 16269896, 20337370, 40674740, 81349480]

約数ペア:

[(1, 81349480), (2, 40674740), (4, 20337370), (5, 16269896), (8, 10168685), (10, 8134948), (20, 4067474), (40, 2033737), (47, 1730840), (94, 865420), (188, 432710), (235, 346168), (376, 216355), (470, 173084), (940, 86542), (1880, 43271)]