81146240

素因数分解:

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

素因数の和:392

約数の個数: 128

約数和(自身を含む): 226195200

約数和(自身を除く): 145048960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 64, 70, 80, 112, 118, 128, 140, 160, 224, 236, 280, 295, 307, 320, 413, 448, 472, 560, 590, 614, 640, 826, 896, 944, 1120, 1180, 1228, 1535, 1652, 1888, 2065, 2149, 2240, 2360, 2456, 3070, 3304, 3776, 4130, 4298, 4480, 4720, 4912, 6140, 6608, 7552, 8260, 8596, 9440, 9824, 10745, 12280, 13216, 16520, 17192, 18113, 18880, 19648, 21490, 24560, 26432, 33040, 34384, 36226, 37760, 39296, 42980, 49120, 52864, 66080, 68768, 72452, 85960, 90565, 98240, 126791, 132160, 137536, 144904, 171920, 181130, 196480, 253582, 264320, 275072, 289808, 343840, 362260, 507164, 579616, 633955, 687680, 724520, 1014328, 1159232, 1267910, 1375360, 1449040, 2028656, 2318464, 2535820, 2898080, 4057312, 5071640, 5796160, 8114624, 10143280, 11592320, 16229248, 20286560, 40573120, 81146240]

約数ペア:

[(1, 81146240), (2, 40573120), (4, 20286560), (5, 16229248), (7, 11592320), (8, 10143280), (10, 8114624), (14, 5796160), (16, 5071640), (20, 4057312), (28, 2898080), (32, 2535820), (35, 2318464), (40, 2028656), (56, 1449040), (59, 1375360), (64, 1267910), (70, 1159232), (80, 1014328), (112, 724520), (118, 687680), (128, 633955), (140, 579616), (160, 507164), (224, 362260), (236, 343840), (280, 289808), (295, 275072), (307, 264320), (320, 253582), (413, 196480), (448, 181130), (472, 171920), (560, 144904), (590, 137536), (614, 132160), (640, 126791), (826, 98240), (896, 90565), (944, 85960), (1120, 72452), (1180, 68768), (1228, 66080), (1535, 52864), (1652, 49120), (1888, 42980), (2065, 39296), (2149, 37760), (2240, 36226), (2360, 34384), (2456, 33040), (3070, 26432), (3304, 24560), (3776, 21490), (4130, 19648), (4298, 18880), (4480, 18113), (4720, 17192), (4912, 16520), (6140, 13216), (6608, 12280), (7552, 10745), (8260, 9824), (8596, 9440)]