261921240

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4519}}^1$

素因数の和:4566

約数の個数: 192

約数和(自身を含む): 1015372800

約数和(自身を除く): 753451560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 56, 60, 63, 69, 70, 72, 84, 90, 92, 105, 115, 120, 126, 138, 140, 161, 168, 180, 184, 207, 210, 230, 252, 276, 280, 315, 322, 345, 360, 414, 420, 460, 483, 504, 552, 630, 644, 690, 805, 828, 840, 920, 966, 1035, 1260, 1288, 1380, 1449, 1610, 1656, 1932, 2070, 2415, 2520, 2760, 2898, 3220, 3864, 4140, 4519, 4830, 5796, 6440, 7245, 8280, 9038, 9660, 11592, 13557, 14490, 18076, 19320, 22595, 27114, 28980, 31633, 36152, 40671, 45190, 54228, 57960, 63266, 67785, 81342, 90380, 94899, 103937, 108456, 126532, 135570, 158165, 162684, 180760, 189798, 203355, 207874, 253064, 271140, 284697, 311811, 316330, 325368, 379596, 406710, 415748, 474495, 519685, 542280, 569394, 623622, 632660, 727559, 759192, 813420, 831496, 935433, 948990, 1039370, 1138788, 1247244, 1265320, 1423485, 1455118, 1559055, 1626840, 1870866, 1897980, 2078740, 2182677, 2277576, 2494488, 2846970, 2910236, 3118110, 3637795, 3741732, 3795960, 4157480, 4365354, 4677165, 5693940, 5820472, 6236220, 6548031, 7275590, 7483464, 8730708, 9354330, 10913385, 11387880, 12472440, 13096062, 14551180, 17461416, 18708660, 21826770, 26192124, 29102360, 32740155, 37417320, 43653540, 52384248, 65480310, 87307080, 130960620, 261921240]

約数ペア:

[(1, 261921240), (2, 130960620), (3, 87307080), (4, 65480310), (5, 52384248), (6, 43653540), (7, 37417320), (8, 32740155), (9, 29102360), (10, 26192124), (12, 21826770), (14, 18708660), (15, 17461416), (18, 14551180), (20, 13096062), (21, 12472440), (23, 11387880), (24, 10913385), (28, 9354330), (30, 8730708), (35, 7483464), (36, 7275590), (40, 6548031), (42, 6236220), (45, 5820472), (46, 5693940), (56, 4677165), (60, 4365354), (63, 4157480), (69, 3795960), (70, 3741732), (72, 3637795), (84, 3118110), (90, 2910236), (92, 2846970), (105, 2494488), (115, 2277576), (120, 2182677), (126, 2078740), (138, 1897980), (140, 1870866), (161, 1626840), (168, 1559055), (180, 1455118), (184, 1423485), (207, 1265320), (210, 1247244), (230, 1138788), (252, 1039370), (276, 948990), (280, 935433), (315, 831496), (322, 813420), (345, 759192), (360, 727559), (414, 632660), (420, 623622), (460, 569394), (483, 542280), (504, 519685), (552, 474495), (630, 415748), (644, 406710), (690, 379596), (805, 325368), (828, 316330), (840, 311811), (920, 284697), (966, 271140), (1035, 253064), (1260, 207874), (1288, 203355), (1380, 189798), (1449, 180760), (1610, 162684), (1656, 158165), (1932, 135570), (2070, 126532), (2415, 108456), (2520, 103937), (2760, 94899), (2898, 90380), (3220, 81342), (3864, 67785), (4140, 63266), (4519, 57960), (4830, 54228), (5796, 45190), (6440, 40671), (7245, 36152), (8280, 31633), (9038, 28980), (9660, 27114), (11592, 22595), (13557, 19320), (14490, 18076)]