81066720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1049}}^1$

素因数の和:1097

約数の個数: 192

約数和(自身を含む): 304819200

約数和(自身を除く): 223752480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 138, 140, 160, 161, 168, 184, 210, 224, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 480, 483, 552, 560, 644, 672, 690, 736, 805, 840, 920, 966, 1049, 1104, 1120, 1288, 1380, 1610, 1680, 1840, 1932, 2098, 2208, 2415, 2576, 2760, 3147, 3220, 3360, 3680, 3864, 4196, 4830, 5152, 5245, 5520, 6294, 6440, 7343, 7728, 8392, 9660, 10490, 11040, 12588, 12880, 14686, 15456, 15735, 16784, 19320, 20980, 22029, 24127, 25176, 25760, 29372, 31470, 33568, 36715, 38640, 41960, 44058, 48254, 50352, 58744, 62940, 72381, 73430, 77280, 83920, 88116, 96508, 100704, 110145, 117488, 120635, 125880, 144762, 146860, 167840, 168889, 176232, 193016, 220290, 234976, 241270, 251760, 289524, 293720, 337778, 352464, 361905, 386032, 440580, 482540, 503520, 506667, 579048, 587440, 675556, 704928, 723810, 772064, 844445, 881160, 965080, 1013334, 1158096, 1174880, 1351112, 1447620, 1688890, 1762320, 1930160, 2026668, 2316192, 2533335, 2702224, 2895240, 3377780, 3524640, 3860320, 4053336, 5066670, 5404448, 5790480, 6755560, 8106672, 10133340, 11580960, 13511120, 16213344, 20266680, 27022240, 40533360, 81066720]

約数ペア:

[(1, 81066720), (2, 40533360), (3, 27022240), (4, 20266680), (5, 16213344), (6, 13511120), (7, 11580960), (8, 10133340), (10, 8106672), (12, 6755560), (14, 5790480), (15, 5404448), (16, 5066670), (20, 4053336), (21, 3860320), (23, 3524640), (24, 3377780), (28, 2895240), (30, 2702224), (32, 2533335), (35, 2316192), (40, 2026668), (42, 1930160), (46, 1762320), (48, 1688890), (56, 1447620), (60, 1351112), (69, 1174880), (70, 1158096), (80, 1013334), (84, 965080), (92, 881160), (96, 844445), (105, 772064), (112, 723810), (115, 704928), (120, 675556), (138, 587440), (140, 579048), (160, 506667), (161, 503520), (168, 482540), (184, 440580), (210, 386032), (224, 361905), (230, 352464), (240, 337778), (276, 293720), (280, 289524), (322, 251760), (336, 241270), (345, 234976), (368, 220290), (420, 193016), (460, 176232), (480, 168889), (483, 167840), (552, 146860), (560, 144762), (644, 125880), (672, 120635), (690, 117488), (736, 110145), (805, 100704), (840, 96508), (920, 88116), (966, 83920), (1049, 77280), (1104, 73430), (1120, 72381), (1288, 62940), (1380, 58744), (1610, 50352), (1680, 48254), (1840, 44058), (1932, 41960), (2098, 38640), (2208, 36715), (2415, 33568), (2576, 31470), (2760, 29372), (3147, 25760), (3220, 25176), (3360, 24127), (3680, 22029), (3864, 20980), (4196, 19320), (4830, 16784), (5152, 15735), (5245, 15456), (5520, 14686), (6294, 12880), (6440, 12588), (7343, 11040), (7728, 10490), (8392, 9660)]