81503280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:508

約数の個数: 160

約数和(自身を含む): 284356800

約数和(自身を除く): 202853520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 97, 108, 120, 135, 144, 180, 194, 216, 240, 270, 291, 360, 388, 389, 432, 485, 540, 582, 720, 776, 778, 873, 970, 1080, 1164, 1167, 1455, 1552, 1556, 1746, 1940, 1945, 2160, 2328, 2334, 2619, 2910, 3112, 3492, 3501, 3880, 3890, 4365, 4656, 4668, 5238, 5820, 5835, 6224, 6984, 7002, 7760, 7780, 8730, 9336, 10476, 10503, 11640, 11670, 13095, 13968, 14004, 15560, 17460, 17505, 18672, 20952, 21006, 23280, 23340, 26190, 28008, 31120, 34920, 35010, 37733, 41904, 42012, 46680, 52380, 52515, 56016, 69840, 70020, 75466, 84024, 93360, 104760, 105030, 113199, 140040, 150932, 168048, 188665, 209520, 210060, 226398, 280080, 301864, 339597, 377330, 420120, 452796, 565995, 603728, 679194, 754660, 840240, 905592, 1018791, 1131990, 1358388, 1509320, 1697985, 1811184, 2037582, 2263980, 2716776, 3018640, 3395970, 4075164, 4527960, 5093955, 5433552, 6791940, 8150328, 9055920, 10187910, 13583880, 16300656, 20375820, 27167760, 40751640, 81503280]

約数ペア:

[(1, 81503280), (2, 40751640), (3, 27167760), (4, 20375820), (5, 16300656), (6, 13583880), (8, 10187910), (9, 9055920), (10, 8150328), (12, 6791940), (15, 5433552), (16, 5093955), (18, 4527960), (20, 4075164), (24, 3395970), (27, 3018640), (30, 2716776), (36, 2263980), (40, 2037582), (45, 1811184), (48, 1697985), (54, 1509320), (60, 1358388), (72, 1131990), (80, 1018791), (90, 905592), (97, 840240), (108, 754660), (120, 679194), (135, 603728), (144, 565995), (180, 452796), (194, 420120), (216, 377330), (240, 339597), (270, 301864), (291, 280080), (360, 226398), (388, 210060), (389, 209520), (432, 188665), (485, 168048), (540, 150932), (582, 140040), (720, 113199), (776, 105030), (778, 104760), (873, 93360), (970, 84024), (1080, 75466), (1164, 70020), (1167, 69840), (1455, 56016), (1552, 52515), (1556, 52380), (1746, 46680), (1940, 42012), (1945, 41904), (2160, 37733), (2328, 35010), (2334, 34920), (2619, 31120), (2910, 28008), (3112, 26190), (3492, 23340), (3501, 23280), (3880, 21006), (3890, 20952), (4365, 18672), (4656, 17505), (4668, 17460), (5238, 15560), (5820, 14004), (5835, 13968), (6224, 13095), (6984, 11670), (7002, 11640), (7760, 10503), (7780, 10476), (8730, 9336)]