28821520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 85494528

約数和(自身を除く): 56673008

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 37, 40, 52, 56, 65, 70, 74, 80, 91, 104, 107, 112, 130, 140, 148, 182, 185, 208, 214, 259, 260, 280, 296, 364, 370, 428, 455, 481, 518, 520, 535, 560, 592, 728, 740, 749, 856, 910, 962, 1036, 1040, 1070, 1295, 1391, 1456, 1480, 1498, 1712, 1820, 1924, 2072, 2140, 2405, 2590, 2782, 2960, 2996, 3367, 3640, 3745, 3848, 3959, 4144, 4280, 4810, 5180, 5564, 5992, 6734, 6955, 7280, 7490, 7696, 7918, 8560, 9620, 9737, 10360, 11128, 11984, 13468, 13910, 14980, 15836, 16835, 19240, 19474, 19795, 20720, 22256, 26936, 27713, 27820, 29960, 31672, 33670, 38480, 38948, 39590, 48685, 51467, 53872, 55426, 55640, 59920, 63344, 67340, 77896, 79180, 97370, 102934, 110852, 111280, 134680, 138565, 155792, 158360, 194740, 205868, 221704, 257335, 269360, 277130, 316720, 360269, 389480, 411736, 443408, 514670, 554260, 720538, 778960, 823472, 1029340, 1108520, 1441076, 1801345, 2058680, 2217040, 2882152, 3602690, 4117360, 5764304, 7205380, 14410760, 28821520]

約数ペア:

[(1, 28821520), (2, 14410760), (4, 7205380), (5, 5764304), (7, 4117360), (8, 3602690), (10, 2882152), (13, 2217040), (14, 2058680), (16, 1801345), (20, 1441076), (26, 1108520), (28, 1029340), (35, 823472), (37, 778960), (40, 720538), (52, 554260), (56, 514670), (65, 443408), (70, 411736), (74, 389480), (80, 360269), (91, 316720), (104, 277130), (107, 269360), (112, 257335), (130, 221704), (140, 205868), (148, 194740), (182, 158360), (185, 155792), (208, 138565), (214, 134680), (259, 111280), (260, 110852), (280, 102934), (296, 97370), (364, 79180), (370, 77896), (428, 67340), (455, 63344), (481, 59920), (518, 55640), (520, 55426), (535, 53872), (560, 51467), (592, 48685), (728, 39590), (740, 38948), (749, 38480), (856, 33670), (910, 31672), (962, 29960), (1036, 27820), (1040, 27713), (1070, 26936), (1295, 22256), (1391, 20720), (1456, 19795), (1480, 19474), (1498, 19240), (1712, 16835), (1820, 15836), (1924, 14980), (2072, 13910), (2140, 13468), (2405, 11984), (2590, 11128), (2782, 10360), (2960, 9737), (2996, 9620), (3367, 8560), (3640, 7918), (3745, 7696), (3848, 7490), (3959, 7280), (4144, 6955), (4280, 6734), (4810, 5992), (5180, 5564)]