65190220

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{19997}}^1$

素因数の和:20169

約数の個数: 24

約数和(自身を含む): 137746224

約数和(自身を除く): 72556004

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 19997, 39994, 79988, 99985, 199970, 399940, 3259511, 6519022, 13038044, 16297555, 32595110, 65190220]

約数ペア:

[(1, 65190220), (2, 32595110), (4, 16297555), (5, 13038044), (10, 6519022), (20, 3259511), (163, 399940), (326, 199970), (652, 99985), (815, 79988), (1630, 39994), (3260, 19997)]