636976

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{971}}^1$

素因数の和:1020

約数の個数: 20

約数和(自身を含む): 1265544

約数和(自身を除く): 628568

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 971, 1942, 3884, 7768, 15536, 39811, 79622, 159244, 318488, 636976]

約数ペア:

[(1, 636976), (2, 318488), (4, 159244), (8, 79622), (16, 39811), (41, 15536), (82, 7768), (164, 3884), (328, 1942), (656, 971)]