26979640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16451}}^1$

素因数の和:16503

約数の個数: 32

約数和(自身を含む): 62188560

約数和(自身を除く): 35208920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 16451, 32902, 65804, 82255, 131608, 164510, 329020, 658040, 674491, 1348982, 2697964, 3372455, 5395928, 6744910, 13489820, 26979640]

約数ペア:

[(1, 26979640), (2, 13489820), (4, 6744910), (5, 5395928), (8, 3372455), (10, 2697964), (20, 1348982), (40, 674491), (41, 658040), (82, 329020), (164, 164510), (205, 131608), (328, 82255), (410, 65804), (820, 32902), (1640, 16451)]