20490600

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 192

約数和(自身を含む): 71245440

約数和(自身を除く): 50754840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 37, 39, 40, 50, 52, 60, 65, 71, 74, 75, 78, 100, 104, 111, 120, 130, 142, 148, 150, 156, 185, 195, 200, 213, 222, 260, 284, 296, 300, 312, 325, 355, 370, 390, 426, 444, 481, 520, 555, 568, 600, 650, 710, 740, 780, 852, 888, 923, 925, 962, 975, 1065, 1110, 1300, 1420, 1443, 1480, 1560, 1704, 1775, 1846, 1850, 1924, 1950, 2130, 2220, 2405, 2600, 2627, 2769, 2775, 2840, 2886, 3550, 3692, 3700, 3848, 3900, 4260, 4440, 4615, 4810, 5254, 5325, 5538, 5550, 5772, 7100, 7215, 7384, 7400, 7800, 7881, 8520, 9230, 9620, 10508, 10650, 11076, 11100, 11544, 12025, 13135, 13845, 14200, 14430, 15762, 18460, 19240, 21016, 21300, 22152, 22200, 23075, 24050, 26270, 27690, 28860, 31524, 34151, 36075, 36920, 39405, 42600, 46150, 48100, 52540, 55380, 57720, 63048, 65675, 68302, 69225, 72150, 78810, 92300, 96200, 102453, 105080, 110760, 131350, 136604, 138450, 144300, 157620, 170755, 184600, 197025, 204906, 262700, 273208, 276900, 288600, 315240, 341510, 394050, 409812, 512265, 525400, 553800, 683020, 788100, 819624, 853775, 1024530, 1366040, 1576200, 1707550, 2049060, 2561325, 3415100, 4098120, 5122650, 6830200, 10245300, 20490600]

約数ペア:

[(1, 20490600), (2, 10245300), (3, 6830200), (4, 5122650), (5, 4098120), (6, 3415100), (8, 2561325), (10, 2049060), (12, 1707550), (13, 1576200), (15, 1366040), (20, 1024530), (24, 853775), (25, 819624), (26, 788100), (30, 683020), (37, 553800), (39, 525400), (40, 512265), (50, 409812), (52, 394050), (60, 341510), (65, 315240), (71, 288600), (74, 276900), (75, 273208), (78, 262700), (100, 204906), (104, 197025), (111, 184600), (120, 170755), (130, 157620), (142, 144300), (148, 138450), (150, 136604), (156, 131350), (185, 110760), (195, 105080), (200, 102453), (213, 96200), (222, 92300), (260, 78810), (284, 72150), (296, 69225), (300, 68302), (312, 65675), (325, 63048), (355, 57720), (370, 55380), (390, 52540), (426, 48100), (444, 46150), (481, 42600), (520, 39405), (555, 36920), (568, 36075), (600, 34151), (650, 31524), (710, 28860), (740, 27690), (780, 26270), (852, 24050), (888, 23075), (923, 22200), (925, 22152), (962, 21300), (975, 21016), (1065, 19240), (1110, 18460), (1300, 15762), (1420, 14430), (1443, 14200), (1480, 13845), (1560, 13135), (1704, 12025), (1775, 11544), (1846, 11100), (1850, 11076), (1924, 10650), (1950, 10508), (2130, 9620), (2220, 9230), (2405, 8520), (2600, 7881), (2627, 7800), (2769, 7400), (2775, 7384), (2840, 7215), (2886, 7100), (3550, 5772), (3692, 5550), (3700, 5538), (3848, 5325), (3900, 5254), (4260, 4810), (4440, 4615)]