20404560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 160

約数和(自身を含む): 70709760

約数和(自身を除く): 50305200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 59, 60, 66, 80, 88, 110, 118, 120, 131, 132, 165, 176, 177, 220, 236, 240, 262, 264, 295, 330, 354, 393, 440, 472, 524, 528, 590, 649, 655, 660, 708, 786, 880, 885, 944, 1048, 1180, 1298, 1310, 1320, 1416, 1441, 1572, 1770, 1947, 1965, 2096, 2360, 2596, 2620, 2640, 2832, 2882, 3144, 3245, 3540, 3894, 3930, 4323, 4720, 5192, 5240, 5764, 6288, 6490, 7080, 7205, 7729, 7788, 7860, 8646, 9735, 10384, 10480, 11528, 12980, 14160, 14410, 15458, 15576, 15720, 17292, 19470, 21615, 23056, 23187, 25960, 28820, 30916, 31152, 31440, 34584, 38645, 38940, 43230, 46374, 51920, 57640, 61832, 69168, 77290, 77880, 85019, 86460, 92748, 115280, 115935, 123664, 154580, 155760, 170038, 172920, 185496, 231870, 255057, 309160, 340076, 345840, 370992, 425095, 463740, 510114, 618320, 680152, 850190, 927480, 1020228, 1275285, 1360304, 1700380, 1854960, 2040456, 2550570, 3400760, 4080912, 5101140, 6801520, 10202280, 20404560]

約数ペア:

[(1, 20404560), (2, 10202280), (3, 6801520), (4, 5101140), (5, 4080912), (6, 3400760), (8, 2550570), (10, 2040456), (11, 1854960), (12, 1700380), (15, 1360304), (16, 1275285), (20, 1020228), (22, 927480), (24, 850190), (30, 680152), (33, 618320), (40, 510114), (44, 463740), (48, 425095), (55, 370992), (59, 345840), (60, 340076), (66, 309160), (80, 255057), (88, 231870), (110, 185496), (118, 172920), (120, 170038), (131, 155760), (132, 154580), (165, 123664), (176, 115935), (177, 115280), (220, 92748), (236, 86460), (240, 85019), (262, 77880), (264, 77290), (295, 69168), (330, 61832), (354, 57640), (393, 51920), (440, 46374), (472, 43230), (524, 38940), (528, 38645), (590, 34584), (649, 31440), (655, 31152), (660, 30916), (708, 28820), (786, 25960), (880, 23187), (885, 23056), (944, 21615), (1048, 19470), (1180, 17292), (1298, 15720), (1310, 15576), (1320, 15458), (1416, 14410), (1441, 14160), (1572, 12980), (1770, 11528), (1947, 10480), (1965, 10384), (2096, 9735), (2360, 8646), (2596, 7860), (2620, 7788), (2640, 7729), (2832, 7205), (2882, 7080), (3144, 6490), (3245, 6288), (3540, 5764), (3894, 5240), (3930, 5192), (4323, 4720)]