28239120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:470

約数の個数: 240

約数和(自身を含む): 116992512

約数和(自身を除く): 88753392

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 168, 180, 182, 195, 208, 210, 234, 240, 252, 260, 273, 280, 312, 315, 336, 360, 364, 390, 420, 431, 455, 468, 504, 520, 546, 560, 585, 624, 630, 720, 728, 780, 819, 840, 862, 910, 936, 1008, 1040, 1092, 1170, 1260, 1293, 1365, 1456, 1560, 1638, 1680, 1724, 1820, 1872, 2155, 2184, 2340, 2520, 2586, 2730, 3017, 3120, 3276, 3448, 3640, 3879, 4095, 4310, 4368, 4680, 5040, 5172, 5460, 5603, 6034, 6465, 6552, 6896, 7280, 7758, 8190, 8620, 9051, 9360, 10344, 10920, 11206, 12068, 12930, 13104, 15085, 15516, 16380, 16809, 17240, 18102, 19395, 20688, 21840, 22412, 24136, 25860, 27153, 28015, 30170, 31032, 32760, 33618, 34480, 36204, 38790, 39221, 44824, 45255, 48272, 50427, 51720, 54306, 56030, 60340, 62064, 65520, 67236, 72408, 77580, 78442, 84045, 89648, 90510, 100854, 103440, 108612, 112060, 117663, 120680, 134472, 135765, 144816, 155160, 156884, 168090, 181020, 196105, 201708, 217224, 224120, 235326, 241360, 252135, 268944, 271530, 310320, 313768, 336180, 352989, 362040, 392210, 403416, 434448, 448240, 470652, 504270, 543060, 588315, 627536, 672360, 705978, 724080, 784420, 806832, 941304, 1008540, 1086120, 1176630, 1344720, 1411956, 1568840, 1764945, 1882608, 2017080, 2172240, 2353260, 2823912, 3137680, 3529890, 4034160, 4706520, 5647824, 7059780, 9413040, 14119560, 28239120]

約数ペア:

[(1, 28239120), (2, 14119560), (3, 9413040), (4, 7059780), (5, 5647824), (6, 4706520), (7, 4034160), (8, 3529890), (9, 3137680), (10, 2823912), (12, 2353260), (13, 2172240), (14, 2017080), (15, 1882608), (16, 1764945), (18, 1568840), (20, 1411956), (21, 1344720), (24, 1176630), (26, 1086120), (28, 1008540), (30, 941304), (35, 806832), (36, 784420), (39, 724080), (40, 705978), (42, 672360), (45, 627536), (48, 588315), (52, 543060), (56, 504270), (60, 470652), (63, 448240), (65, 434448), (70, 403416), (72, 392210), (78, 362040), (80, 352989), (84, 336180), (90, 313768), (91, 310320), (104, 271530), (105, 268944), (112, 252135), (117, 241360), (120, 235326), (126, 224120), (130, 217224), (140, 201708), (144, 196105), (156, 181020), (168, 168090), (180, 156884), (182, 155160), (195, 144816), (208, 135765), (210, 134472), (234, 120680), (240, 117663), (252, 112060), (260, 108612), (273, 103440), (280, 100854), (312, 90510), (315, 89648), (336, 84045), (360, 78442), (364, 77580), (390, 72408), (420, 67236), (431, 65520), (455, 62064), (468, 60340), (504, 56030), (520, 54306), (546, 51720), (560, 50427), (585, 48272), (624, 45255), (630, 44824), (720, 39221), (728, 38790), (780, 36204), (819, 34480), (840, 33618), (862, 32760), (910, 31032), (936, 30170), (1008, 28015), (1040, 27153), (1092, 25860), (1170, 24136), (1260, 22412), (1293, 21840), (1365, 20688), (1456, 19395), (1560, 18102), (1638, 17240), (1680, 16809), (1724, 16380), (1820, 15516), (1872, 15085), (2155, 13104), (2184, 12930), (2340, 12068), (2520, 11206), (2586, 10920), (2730, 10344), (3017, 9360), (3120, 9051), (3276, 8620), (3448, 8190), (3640, 7758), (3879, 7280), (4095, 6896), (4310, 6552), (4368, 6465), (4680, 6034), (5040, 5603), (5172, 5460)]