13559320

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1319}}^1$

素因数の和:1587

約数の個数: 32

約数和(自身を含む): 30650400

約数和(自身を除く): 17091080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1319, 2056, 2570, 2638, 5140, 5276, 6595, 10280, 10552, 13190, 26380, 52760, 338983, 677966, 1355932, 1694915, 2711864, 3389830, 6779660, 13559320]

約数ペア:

[(1, 13559320), (2, 6779660), (4, 3389830), (5, 2711864), (8, 1694915), (10, 1355932), (20, 677966), (40, 338983), (257, 52760), (514, 26380), (1028, 13190), (1285, 10552), (1319, 10280), (2056, 6595), (2570, 5276), (2638, 5140)]