12678020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15461}}^1$

素因数の和:15511

約数の個数: 24

約数和(自身を含む): 27274968

約数和(自身を除く): 14596948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15461, 30922, 61844, 77305, 154610, 309220, 633901, 1267802, 2535604, 3169505, 6339010, 12678020]

約数ペア:

[(1, 12678020), (2, 6339010), (4, 3169505), (5, 2535604), (10, 1267802), (20, 633901), (41, 309220), (82, 154610), (164, 77305), (205, 61844), (410, 30922), (820, 15461)]