84658580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 181440000

約数和(自身を除く): 96781420

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 199, 239, 356, 398, 445, 478, 796, 890, 956, 995, 1195, 1780, 1990, 2390, 3980, 4780, 17711, 21271, 35422, 42542, 47561, 70844, 85084, 88555, 95122, 106355, 177110, 190244, 212710, 237805, 354220, 425420, 475610, 951220, 4232929, 8465858, 16931716, 21164645, 42329290, 84658580]

約数ペア:

[(1, 84658580), (2, 42329290), (4, 21164645), (5, 16931716), (10, 8465858), (20, 4232929), (89, 951220), (178, 475610), (199, 425420), (239, 354220), (356, 237805), (398, 212710), (445, 190244), (478, 177110), (796, 106355), (890, 95122), (956, 88555), (995, 85084), (1195, 70844), (1780, 47561), (1990, 42542), (2390, 35422), (3980, 21271), (4780, 17711)]