981217260

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:637

約数の個数: 192

約数和(自身を含む): 3209472000

約数和(自身を除く): 2228254740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 90, 92, 108, 115, 135, 138, 180, 199, 207, 230, 270, 276, 345, 397, 398, 414, 460, 540, 597, 621, 690, 794, 796, 828, 995, 1035, 1191, 1194, 1242, 1380, 1588, 1791, 1985, 1990, 2070, 2382, 2388, 2484, 2985, 3105, 3573, 3582, 3970, 3980, 4140, 4577, 4764, 5373, 5955, 5970, 6210, 7146, 7164, 7940, 8955, 9131, 9154, 10719, 10746, 11910, 11940, 12420, 13731, 14292, 17865, 17910, 18262, 18308, 21438, 21492, 22885, 23820, 26865, 27393, 27462, 35730, 35820, 36524, 41193, 42876, 45655, 45770, 53595, 53730, 54786, 54924, 68655, 71460, 79003, 82179, 82386, 91310, 91540, 107190, 107460, 109572, 123579, 136965, 137310, 158006, 164358, 164772, 182620, 205965, 214380, 237009, 246537, 247158, 273930, 274620, 316012, 328716, 395015, 410895, 411930, 474018, 493074, 494316, 547860, 617895, 711027, 790030, 821790, 823860, 948036, 986148, 1185045, 1232685, 1235790, 1422054, 1580060, 1643580, 1817069, 2133081, 2370090, 2465370, 2471580, 2844108, 3555135, 3634138, 4266162, 4740180, 4930740, 5451207, 7110270, 7268276, 8532324, 9085345, 10665405, 10902414, 14220540, 16353621, 18170690, 21330810, 21804828, 27256035, 32707242, 36341380, 42661620, 49060863, 54512070, 65414484, 81768105, 98121726, 109024140, 163536210, 196243452, 245304315, 327072420, 490608630, 981217260]

約数ペア:

[(1, 981217260), (2, 490608630), (3, 327072420), (4, 245304315), (5, 196243452), (6, 163536210), (9, 109024140), (10, 98121726), (12, 81768105), (15, 65414484), (18, 54512070), (20, 49060863), (23, 42661620), (27, 36341380), (30, 32707242), (36, 27256035), (45, 21804828), (46, 21330810), (54, 18170690), (60, 16353621), (69, 14220540), (90, 10902414), (92, 10665405), (108, 9085345), (115, 8532324), (135, 7268276), (138, 7110270), (180, 5451207), (199, 4930740), (207, 4740180), (230, 4266162), (270, 3634138), (276, 3555135), (345, 2844108), (397, 2471580), (398, 2465370), (414, 2370090), (460, 2133081), (540, 1817069), (597, 1643580), (621, 1580060), (690, 1422054), (794, 1235790), (796, 1232685), (828, 1185045), (995, 986148), (1035, 948036), (1191, 823860), (1194, 821790), (1242, 790030), (1380, 711027), (1588, 617895), (1791, 547860), (1985, 494316), (1990, 493074), (2070, 474018), (2382, 411930), (2388, 410895), (2484, 395015), (2985, 328716), (3105, 316012), (3573, 274620), (3582, 273930), (3970, 247158), (3980, 246537), (4140, 237009), (4577, 214380), (4764, 205965), (5373, 182620), (5955, 164772), (5970, 164358), (6210, 158006), (7146, 137310), (7164, 136965), (7940, 123579), (8955, 109572), (9131, 107460), (9154, 107190), (10719, 91540), (10746, 91310), (11910, 82386), (11940, 82179), (12420, 79003), (13731, 71460), (14292, 68655), (17865, 54924), (17910, 54786), (18262, 53730), (18308, 53595), (21438, 45770), (21492, 45655), (22885, 42876), (23820, 41193), (26865, 36524), (27393, 35820), (27462, 35730)]