81368320

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5779}}^1$

素因数の和:5811

約数の個数: 72

約数和(自身を含む): 212657760

約数和(自身を除く): 131289440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 5779, 7040, 11558, 14080, 23116, 28895, 46232, 57790, 63569, 92464, 115580, 127138, 184928, 231160, 254276, 317845, 369856, 462320, 508552, 635690, 739712, 924640, 1017104, 1271380, 1479424, 1849280, 2034208, 2542760, 3698560, 4068416, 5085520, 7397120, 8136832, 10171040, 16273664, 20342080, 40684160, 81368320]

約数ペア:

[(1, 81368320), (2, 40684160), (4, 20342080), (5, 16273664), (8, 10171040), (10, 8136832), (11, 7397120), (16, 5085520), (20, 4068416), (22, 3698560), (32, 2542760), (40, 2034208), (44, 1849280), (55, 1479424), (64, 1271380), (80, 1017104), (88, 924640), (110, 739712), (128, 635690), (160, 508552), (176, 462320), (220, 369856), (256, 317845), (320, 254276), (352, 231160), (440, 184928), (640, 127138), (704, 115580), (880, 92464), (1280, 63569), (1408, 57790), (1760, 46232), (2816, 28895), (3520, 23116), (5779, 14080), (7040, 11558)]