81251040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:509

約数の個数: 192

約数和(自身を含む): 285768000

約数和(自身を除く): 204516960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 29, 30, 32, 39, 40, 48, 52, 58, 60, 65, 78, 80, 87, 96, 104, 116, 120, 130, 145, 156, 160, 174, 195, 208, 232, 240, 260, 290, 312, 348, 377, 390, 416, 435, 449, 464, 480, 520, 580, 624, 696, 754, 780, 870, 898, 928, 1040, 1131, 1160, 1248, 1347, 1392, 1508, 1560, 1740, 1796, 1885, 2080, 2245, 2262, 2320, 2694, 2784, 3016, 3120, 3480, 3592, 3770, 4490, 4524, 4640, 5388, 5655, 5837, 6032, 6240, 6735, 6960, 7184, 7540, 8980, 9048, 10776, 11310, 11674, 12064, 13021, 13470, 13920, 14368, 15080, 17511, 17960, 18096, 21552, 22620, 23348, 26042, 26940, 29185, 30160, 35022, 35920, 36192, 39063, 43104, 45240, 46696, 52084, 53880, 58370, 60320, 65105, 70044, 71840, 78126, 87555, 90480, 93392, 104168, 107760, 116740, 130210, 140088, 156252, 169273, 175110, 180960, 186784, 195315, 208336, 215520, 233480, 260420, 280176, 312504, 338546, 350220, 390630, 416672, 466960, 507819, 520840, 560352, 625008, 677092, 700440, 781260, 846365, 933920, 1015638, 1041680, 1250016, 1354184, 1400880, 1562520, 1692730, 2031276, 2083360, 2539095, 2708368, 2801760, 3125040, 3385460, 4062552, 5078190, 5416736, 6250080, 6770920, 8125104, 10156380, 13541840, 16250208, 20312760, 27083680, 40625520, 81251040]

約数ペア:

[(1, 81251040), (2, 40625520), (3, 27083680), (4, 20312760), (5, 16250208), (6, 13541840), (8, 10156380), (10, 8125104), (12, 6770920), (13, 6250080), (15, 5416736), (16, 5078190), (20, 4062552), (24, 3385460), (26, 3125040), (29, 2801760), (30, 2708368), (32, 2539095), (39, 2083360), (40, 2031276), (48, 1692730), (52, 1562520), (58, 1400880), (60, 1354184), (65, 1250016), (78, 1041680), (80, 1015638), (87, 933920), (96, 846365), (104, 781260), (116, 700440), (120, 677092), (130, 625008), (145, 560352), (156, 520840), (160, 507819), (174, 466960), (195, 416672), (208, 390630), (232, 350220), (240, 338546), (260, 312504), (290, 280176), (312, 260420), (348, 233480), (377, 215520), (390, 208336), (416, 195315), (435, 186784), (449, 180960), (464, 175110), (480, 169273), (520, 156252), (580, 140088), (624, 130210), (696, 116740), (754, 107760), (780, 104168), (870, 93392), (898, 90480), (928, 87555), (1040, 78126), (1131, 71840), (1160, 70044), (1248, 65105), (1347, 60320), (1392, 58370), (1508, 53880), (1560, 52084), (1740, 46696), (1796, 45240), (1885, 43104), (2080, 39063), (2245, 36192), (2262, 35920), (2320, 35022), (2694, 30160), (2784, 29185), (3016, 26940), (3120, 26042), (3480, 23348), (3592, 22620), (3770, 21552), (4490, 18096), (4524, 17960), (4640, 17511), (5388, 15080), (5655, 14368), (5837, 13920), (6032, 13470), (6240, 13021), (6735, 12064), (6960, 11674), (7184, 11310), (7540, 10776), (8980, 9048)]