31677815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 43008000

約数和(自身を除く): 11330185

約数列:

[1, 5, 13, 31, 65, 79, 155, 199, 395, 403, 995, 1027, 2015, 2449, 2587, 5135, 6169, 12245, 12935, 15721, 30845, 31837, 78605, 80197, 159185, 204373, 400985, 487351, 1021865, 2436755, 6335563, 31677815]

約数ペア:

[(1, 31677815), (5, 6335563), (13, 2436755), (31, 1021865), (65, 487351), (79, 400985), (155, 204373), (199, 159185), (395, 80197), (403, 78605), (995, 31837), (1027, 30845), (2015, 15721), (2449, 12935), (2587, 12245), (5135, 6169)]