17867240

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1061}}^1$

素因数の和:1493

約数の個数: 32

約数和(自身を含む): 40334760

約数和(自身を除く): 22467520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1061, 1684, 2105, 2122, 3368, 4210, 4244, 5305, 8420, 8488, 10610, 16840, 21220, 42440, 446681, 893362, 1786724, 2233405, 3573448, 4466810, 8933620, 17867240]

約数ペア:

[(1, 17867240), (2, 8933620), (4, 4466810), (5, 3573448), (8, 2233405), (10, 1786724), (20, 893362), (40, 446681), (421, 42440), (842, 21220), (1061, 16840), (1684, 10610), (2105, 8488), (2122, 8420), (3368, 5305), (4210, 4244)]