81479344

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{12451}}^1$

素因数の和:12868

約数の個数: 20

約数和(自身を含む): 158264920

約数和(自身を除く): 76785576

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 6544, 12451, 24902, 49804, 99608, 199216, 5092459, 10184918, 20369836, 40739672, 81479344]

約数ペア:

[(1, 81479344), (2, 40739672), (4, 20369836), (8, 10184918), (16, 5092459), (409, 199216), (818, 99608), (1636, 49804), (3272, 24902), (6544, 12451)]