208609840

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 497959200

約数和(自身を除く): 289349360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 193, 229, 236, 295, 386, 458, 472, 590, 772, 916, 944, 965, 1145, 1180, 1544, 1832, 1930, 2290, 2360, 3088, 3664, 3860, 4580, 4720, 7720, 9160, 11387, 13511, 15440, 18320, 22774, 27022, 44197, 45548, 54044, 56935, 67555, 88394, 91096, 108088, 113870, 135110, 176788, 182192, 216176, 220985, 227740, 270220, 353576, 441970, 455480, 540440, 707152, 883940, 910960, 1080880, 1767880, 2607623, 3535760, 5215246, 10430492, 13038115, 20860984, 26076230, 41721968, 52152460, 104304920, 208609840]

約数ペア:

[(1, 208609840), (2, 104304920), (4, 52152460), (5, 41721968), (8, 26076230), (10, 20860984), (16, 13038115), (20, 10430492), (40, 5215246), (59, 3535760), (80, 2607623), (118, 1767880), (193, 1080880), (229, 910960), (236, 883940), (295, 707152), (386, 540440), (458, 455480), (472, 441970), (590, 353576), (772, 270220), (916, 227740), (944, 220985), (965, 216176), (1145, 182192), (1180, 176788), (1544, 135110), (1832, 113870), (1930, 108088), (2290, 91096), (2360, 88394), (3088, 67555), (3664, 56935), (3860, 54044), (4580, 45548), (4720, 44197), (7720, 27022), (9160, 22774), (11387, 18320), (13511, 15440)]