81891286

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 130233600

約数和(自身を除く): 48342314

約数列:

[1, 2, 37, 67, 74, 83, 134, 166, 199, 398, 2479, 3071, 4958, 5561, 6142, 7363, 11122, 13333, 14726, 16517, 26666, 33034, 205757, 411514, 493321, 611129, 986642, 1106639, 1222258, 2213278, 40945643, 81891286]

約数ペア:

[(1, 81891286), (2, 40945643), (37, 2213278), (67, 1222258), (74, 1106639), (83, 986642), (134, 611129), (166, 493321), (199, 411514), (398, 205757), (2479, 33034), (3071, 26666), (4958, 16517), (5561, 14726), (6142, 13333), (7363, 11122)]