81302760

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{419}}^1$

素因数の和:461

約数の個数: 288

約数和(自身を含む): 336117600

約数和(自身を除く): 254814840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 49, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 98, 99, 105, 110, 120, 126, 132, 140, 147, 154, 165, 168, 180, 196, 198, 210, 220, 231, 245, 252, 264, 280, 294, 308, 315, 330, 360, 385, 392, 396, 419, 420, 440, 441, 462, 490, 495, 504, 539, 588, 616, 630, 660, 693, 735, 770, 792, 838, 840, 882, 924, 980, 990, 1078, 1155, 1176, 1257, 1260, 1320, 1386, 1470, 1540, 1617, 1676, 1764, 1848, 1960, 1980, 2095, 2156, 2205, 2310, 2514, 2520, 2695, 2772, 2933, 2940, 3080, 3234, 3352, 3465, 3528, 3771, 3960, 4190, 4312, 4410, 4609, 4620, 4851, 5028, 5390, 5544, 5866, 5880, 6285, 6468, 6930, 7542, 8085, 8380, 8799, 8820, 9218, 9240, 9702, 10056, 10780, 11732, 12570, 12936, 13827, 13860, 14665, 15084, 16170, 16760, 17598, 17640, 18436, 18855, 19404, 20531, 21560, 23045, 23464, 24255, 25140, 26397, 27654, 27720, 29330, 30168, 32263, 32340, 35196, 36872, 37710, 38808, 41062, 41481, 43995, 46090, 48510, 50280, 52794, 55308, 58660, 61593, 64526, 64680, 69135, 70392, 75420, 82124, 82962, 87990, 92180, 96789, 97020, 102655, 105588, 110616, 117320, 123186, 129052, 131985, 138270, 150840, 161315, 164248, 165924, 175980, 184360, 184779, 193578, 194040, 205310, 207405, 211176, 225841, 246372, 258104, 263970, 276540, 290367, 307965, 322630, 331848, 351960, 369558, 387156, 410620, 414810, 451682, 483945, 492744, 527940, 553080, 580734, 615930, 645260, 677523, 739116, 774312, 821240, 829620, 903364, 923895, 967890, 1055880, 1129205, 1161468, 1231860, 1290520, 1355046, 1451835, 1478232, 1659240, 1806728, 1847790, 1935780, 2032569, 2258410, 2322936, 2463720, 2710092, 2903670, 3387615, 3695580, 3871560, 4065138, 4516820, 5420184, 5807340, 6775230, 7391160, 8130276, 9033640, 10162845, 11614680, 13550460, 16260552, 20325690, 27100920, 40651380, 81302760]

約数ペア:

[(1, 81302760), (2, 40651380), (3, 27100920), (4, 20325690), (5, 16260552), (6, 13550460), (7, 11614680), (8, 10162845), (9, 9033640), (10, 8130276), (11, 7391160), (12, 6775230), (14, 5807340), (15, 5420184), (18, 4516820), (20, 4065138), (21, 3871560), (22, 3695580), (24, 3387615), (28, 2903670), (30, 2710092), (33, 2463720), (35, 2322936), (36, 2258410), (40, 2032569), (42, 1935780), (44, 1847790), (45, 1806728), (49, 1659240), (55, 1478232), (56, 1451835), (60, 1355046), (63, 1290520), (66, 1231860), (70, 1161468), (72, 1129205), (77, 1055880), (84, 967890), (88, 923895), (90, 903364), (98, 829620), (99, 821240), (105, 774312), (110, 739116), (120, 677523), (126, 645260), (132, 615930), (140, 580734), (147, 553080), (154, 527940), (165, 492744), (168, 483945), (180, 451682), (196, 414810), (198, 410620), (210, 387156), (220, 369558), (231, 351960), (245, 331848), (252, 322630), (264, 307965), (280, 290367), (294, 276540), (308, 263970), (315, 258104), (330, 246372), (360, 225841), (385, 211176), (392, 207405), (396, 205310), (419, 194040), (420, 193578), (440, 184779), (441, 184360), (462, 175980), (490, 165924), (495, 164248), (504, 161315), (539, 150840), (588, 138270), (616, 131985), (630, 129052), (660, 123186), (693, 117320), (735, 110616), (770, 105588), (792, 102655), (838, 97020), (840, 96789), (882, 92180), (924, 87990), (980, 82962), (990, 82124), (1078, 75420), (1155, 70392), (1176, 69135), (1257, 64680), (1260, 64526), (1320, 61593), (1386, 58660), (1470, 55308), (1540, 52794), (1617, 50280), (1676, 48510), (1764, 46090), (1848, 43995), (1960, 41481), (1980, 41062), (2095, 38808), (2156, 37710), (2205, 36872), (2310, 35196), (2514, 32340), (2520, 32263), (2695, 30168), (2772, 29330), (2933, 27720), (2940, 27654), (3080, 26397), (3234, 25140), (3352, 24255), (3465, 23464), (3528, 23045), (3771, 21560), (3960, 20531), (4190, 19404), (4312, 18855), (4410, 18436), (4609, 17640), (4620, 17598), (4851, 16760), (5028, 16170), (5390, 15084), (5544, 14665), (5866, 13860), (5880, 13827), (6285, 12936), (6468, 12570), (6930, 11732), (7542, 10780), (8085, 10056), (8380, 9702), (8799, 9240), (8820, 9218)]