221455920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{683}}^1$

素因数の和:899

約数の個数: 160

約数和(自身を含む): 789806592

約数和(自身を除く): 568350672

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 193, 210, 240, 280, 336, 386, 420, 560, 579, 683, 772, 840, 965, 1158, 1351, 1366, 1544, 1680, 1930, 2049, 2316, 2702, 2732, 2895, 3088, 3415, 3860, 4053, 4098, 4632, 4781, 5404, 5464, 5790, 6755, 6830, 7720, 8106, 8196, 9264, 9562, 10245, 10808, 10928, 11580, 13510, 13660, 14343, 15440, 16212, 16392, 19124, 20265, 20490, 21616, 23160, 23905, 27020, 27320, 28686, 32424, 32784, 38248, 40530, 40980, 46320, 47810, 54040, 54640, 57372, 64848, 71715, 76496, 81060, 81960, 95620, 108080, 114744, 131819, 143430, 162120, 163920, 191240, 229488, 263638, 286860, 324240, 382480, 395457, 527276, 573720, 659095, 790914, 922733, 1054552, 1147440, 1318190, 1581828, 1845466, 1977285, 2109104, 2636380, 2768199, 3163656, 3690932, 3954570, 4613665, 5272760, 5536398, 6327312, 7381864, 7909140, 9227330, 10545520, 11072796, 13840995, 14763728, 15818280, 18454660, 22145592, 27681990, 31636560, 36909320, 44291184, 55363980, 73818640, 110727960, 221455920]

約数ペア:

[(1, 221455920), (2, 110727960), (3, 73818640), (4, 55363980), (5, 44291184), (6, 36909320), (7, 31636560), (8, 27681990), (10, 22145592), (12, 18454660), (14, 15818280), (15, 14763728), (16, 13840995), (20, 11072796), (21, 10545520), (24, 9227330), (28, 7909140), (30, 7381864), (35, 6327312), (40, 5536398), (42, 5272760), (48, 4613665), (56, 3954570), (60, 3690932), (70, 3163656), (80, 2768199), (84, 2636380), (105, 2109104), (112, 1977285), (120, 1845466), (140, 1581828), (168, 1318190), (193, 1147440), (210, 1054552), (240, 922733), (280, 790914), (336, 659095), (386, 573720), (420, 527276), (560, 395457), (579, 382480), (683, 324240), (772, 286860), (840, 263638), (965, 229488), (1158, 191240), (1351, 163920), (1366, 162120), (1544, 143430), (1680, 131819), (1930, 114744), (2049, 108080), (2316, 95620), (2702, 81960), (2732, 81060), (2895, 76496), (3088, 71715), (3415, 64848), (3860, 57372), (4053, 54640), (4098, 54040), (4632, 47810), (4781, 46320), (5404, 40980), (5464, 40530), (5790, 38248), (6755, 32784), (6830, 32424), (7720, 28686), (8106, 27320), (8196, 27020), (9264, 23905), (9562, 23160), (10245, 21616), (10808, 20490), (10928, 20265), (11580, 19124), (13510, 16392), (13660, 16212), (14343, 15440)]