13409320

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1193}}^1$

素因数の和:1485

約数の個数: 32

約数和(自身を含む): 30303720

約数和(自身を除く): 16894400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1193, 1405, 2248, 2386, 2810, 4772, 5620, 5965, 9544, 11240, 11930, 23860, 47720, 335233, 670466, 1340932, 1676165, 2681864, 3352330, 6704660, 13409320]

約数ペア:

[(1, 13409320), (2, 6704660), (4, 3352330), (5, 2681864), (8, 1676165), (10, 1340932), (20, 670466), (40, 335233), (281, 47720), (562, 23860), (1124, 11930), (1193, 11240), (1405, 9544), (2248, 5965), (2386, 5620), (2810, 4772)]