20266560

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:281

約数の個数: 168

約数和(自身を含む): 72274176

約数和(自身を除く): 52007616

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 192, 227, 240, 248, 279, 288, 310, 320, 360, 372, 454, 465, 480, 496, 558, 576, 620, 681, 720, 744, 908, 930, 960, 992, 1116, 1135, 1240, 1362, 1395, 1440, 1488, 1816, 1860, 1984, 2043, 2232, 2270, 2480, 2724, 2790, 2880, 2976, 3405, 3632, 3720, 4086, 4464, 4540, 4960, 5448, 5580, 5952, 6810, 7037, 7264, 7440, 8172, 8928, 9080, 9920, 10215, 10896, 11160, 13620, 14074, 14528, 14880, 16344, 17856, 18160, 20430, 21111, 21792, 22320, 27240, 28148, 29760, 32688, 35185, 36320, 40860, 42222, 43584, 44640, 54480, 56296, 63333, 65376, 70370, 72640, 81720, 84444, 89280, 105555, 108960, 112592, 126666, 130752, 140740, 163440, 168888, 211110, 217920, 225184, 253332, 281480, 316665, 326880, 337776, 422220, 450368, 506664, 562960, 633330, 653760, 675552, 844440, 1013328, 1125920, 1266660, 1351104, 1688880, 2026656, 2251840, 2533320, 3377760, 4053312, 5066640, 6755520, 10133280, 20266560]

約数ペア:

[(1, 20266560), (2, 10133280), (3, 6755520), (4, 5066640), (5, 4053312), (6, 3377760), (8, 2533320), (9, 2251840), (10, 2026656), (12, 1688880), (15, 1351104), (16, 1266660), (18, 1125920), (20, 1013328), (24, 844440), (30, 675552), (31, 653760), (32, 633330), (36, 562960), (40, 506664), (45, 450368), (48, 422220), (60, 337776), (62, 326880), (64, 316665), (72, 281480), (80, 253332), (90, 225184), (93, 217920), (96, 211110), (120, 168888), (124, 163440), (144, 140740), (155, 130752), (160, 126666), (180, 112592), (186, 108960), (192, 105555), (227, 89280), (240, 84444), (248, 81720), (279, 72640), (288, 70370), (310, 65376), (320, 63333), (360, 56296), (372, 54480), (454, 44640), (465, 43584), (480, 42222), (496, 40860), (558, 36320), (576, 35185), (620, 32688), (681, 29760), (720, 28148), (744, 27240), (908, 22320), (930, 21792), (960, 21111), (992, 20430), (1116, 18160), (1135, 17856), (1240, 16344), (1362, 14880), (1395, 14528), (1440, 14074), (1488, 13620), (1816, 11160), (1860, 10896), (1984, 10215), (2043, 9920), (2232, 9080), (2270, 8928), (2480, 8172), (2724, 7440), (2790, 7264), (2880, 7037), (2976, 6810), (3405, 5952), (3632, 5580), (3720, 5448), (4086, 4960), (4464, 4540)]