13478320

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{509}}^1$

素因数の和:853

約数の個数: 40

約数和(自身を含む): 31493520

約数和(自身を除く): 18015200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 509, 662, 1018, 1324, 1655, 2036, 2545, 2648, 3310, 4072, 5090, 5296, 6620, 8144, 10180, 13240, 20360, 26480, 40720, 168479, 336958, 673916, 842395, 1347832, 1684790, 2695664, 3369580, 6739160, 13478320]

約数ペア:

[(1, 13478320), (2, 6739160), (4, 3369580), (5, 2695664), (8, 1684790), (10, 1347832), (16, 842395), (20, 673916), (40, 336958), (80, 168479), (331, 40720), (509, 26480), (662, 20360), (1018, 13240), (1324, 10180), (1655, 8144), (2036, 6620), (2545, 5296), (2648, 5090), (3310, 4072)]