1638717808

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{953}}^1\times {\mathrm{1181}}^1$

素因数の和:2162

約数の個数: 80

約数和(自身を含む): 3915124416

約数和(自身を除く): 2276406608

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 953, 1181, 1456, 1906, 2362, 3812, 4724, 6671, 7624, 8267, 9448, 12389, 13342, 15248, 15353, 16534, 18896, 24778, 26684, 30706, 33068, 49556, 53368, 61412, 66136, 86723, 99112, 106736, 107471, 122824, 132272, 173446, 198224, 214942, 245648, 346892, 429884, 693784, 859768, 1125493, 1387568, 1719536, 2250986, 4501972, 7878451, 9003944, 14631409, 15756902, 18007888, 29262818, 31513804, 58525636, 63027608, 102419863, 117051272, 126055216, 204839726, 234102544, 409679452, 819358904, 1638717808]

約数ペア:

[(1, 1638717808), (2, 819358904), (4, 409679452), (7, 234102544), (8, 204839726), (13, 126055216), (14, 117051272), (16, 102419863), (26, 63027608), (28, 58525636), (52, 31513804), (56, 29262818), (91, 18007888), (104, 15756902), (112, 14631409), (182, 9003944), (208, 7878451), (364, 4501972), (728, 2250986), (953, 1719536), (1181, 1387568), (1456, 1125493), (1906, 859768), (2362, 693784), (3812, 429884), (4724, 346892), (6671, 245648), (7624, 214942), (8267, 198224), (9448, 173446), (12389, 132272), (13342, 122824), (15248, 107471), (15353, 106736), (16534, 99112), (18896, 86723), (24778, 66136), (26684, 61412), (30706, 53368), (33068, 49556)]