13317620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 29106000

約数和(自身を除く): 15788380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 149, 164, 205, 218, 298, 410, 436, 545, 596, 745, 820, 1090, 1490, 2180, 2980, 4469, 6109, 8938, 12218, 16241, 17876, 22345, 24436, 30545, 32482, 44690, 61090, 64964, 81205, 89380, 122180, 162410, 324820, 665881, 1331762, 2663524, 3329405, 6658810, 13317620]

約数ペア:

[(1, 13317620), (2, 6658810), (4, 3329405), (5, 2663524), (10, 1331762), (20, 665881), (41, 324820), (82, 162410), (109, 122180), (149, 89380), (164, 81205), (205, 64964), (218, 61090), (298, 44690), (410, 32482), (436, 30545), (545, 24436), (596, 22345), (745, 17876), (820, 16241), (1090, 12218), (1490, 8938), (2180, 6109), (2980, 4469)]