20286560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:388

約数の個数: 96

約数和(自身を含む): 55883520

約数和(自身を除く): 35596960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 70, 80, 112, 118, 140, 160, 224, 236, 280, 295, 307, 413, 472, 560, 590, 614, 826, 944, 1120, 1180, 1228, 1535, 1652, 1888, 2065, 2149, 2360, 2456, 3070, 3304, 4130, 4298, 4720, 4912, 6140, 6608, 8260, 8596, 9440, 9824, 10745, 12280, 13216, 16520, 17192, 18113, 21490, 24560, 33040, 34384, 36226, 42980, 49120, 66080, 68768, 72452, 85960, 90565, 126791, 144904, 171920, 181130, 253582, 289808, 343840, 362260, 507164, 579616, 633955, 724520, 1014328, 1267910, 1449040, 2028656, 2535820, 2898080, 4057312, 5071640, 10143280, 20286560]

約数ペア:

[(1, 20286560), (2, 10143280), (4, 5071640), (5, 4057312), (7, 2898080), (8, 2535820), (10, 2028656), (14, 1449040), (16, 1267910), (20, 1014328), (28, 724520), (32, 633955), (35, 579616), (40, 507164), (56, 362260), (59, 343840), (70, 289808), (80, 253582), (112, 181130), (118, 171920), (140, 144904), (160, 126791), (224, 90565), (236, 85960), (280, 72452), (295, 68768), (307, 66080), (413, 49120), (472, 42980), (560, 36226), (590, 34384), (614, 33040), (826, 24560), (944, 21490), (1120, 18113), (1180, 17192), (1228, 16520), (1535, 13216), (1652, 12280), (1888, 10745), (2065, 9824), (2149, 9440), (2360, 8596), (2456, 8260), (3070, 6608), (3304, 6140), (4130, 4912), (4298, 4720)]