16065520

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{491}}^1$

素因数の和:913

約数の個数: 40

約数和(自身を含む): 37519920

約数和(自身を除く): 21454400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 491, 818, 982, 1636, 1964, 2045, 2455, 3272, 3928, 4090, 4910, 6544, 7856, 8180, 9820, 16360, 19640, 32720, 39280, 200819, 401638, 803276, 1004095, 1606552, 2008190, 3213104, 4016380, 8032760, 16065520]

約数ペア:

[(1, 16065520), (2, 8032760), (4, 4016380), (5, 3213104), (8, 2008190), (10, 1606552), (16, 1004095), (20, 803276), (40, 401638), (80, 200819), (409, 39280), (491, 32720), (818, 19640), (982, 16360), (1636, 9820), (1964, 8180), (2045, 7856), (2455, 6544), (3272, 4910), (3928, 4090)]