1665681740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{22027}}^1$

素因数の和:22254

約数の個数: 48

約数和(自身を含む): 3700704000

約数和(自身を除く): 2035022260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1990, 3781, 3980, 7562, 15124, 18905, 22027, 37810, 44054, 75620, 88108, 110135, 220270, 418513, 440540, 837026, 1674052, 2092565, 4185130, 4383373, 8370260, 8766746, 17533492, 21916865, 43833730, 83284087, 87667460, 166568174, 333136348, 416420435, 832840870, 1665681740]

約数ペア:

[(1, 1665681740), (2, 832840870), (4, 416420435), (5, 333136348), (10, 166568174), (19, 87667460), (20, 83284087), (38, 43833730), (76, 21916865), (95, 17533492), (190, 8766746), (199, 8370260), (380, 4383373), (398, 4185130), (796, 2092565), (995, 1674052), (1990, 837026), (3781, 440540), (3980, 418513), (7562, 220270), (15124, 110135), (18905, 88108), (22027, 75620), (37810, 44054)]