20319130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1049}}^1$

素因数の和:1218

約数の個数: 32

約数和(自身を含む): 39690000

約数和(自身を除く): 19370870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1049, 1490, 1937, 2098, 3874, 5245, 9685, 10490, 13637, 19370, 27274, 68185, 136370, 156301, 312602, 781505, 1563010, 2031913, 4063826, 10159565, 20319130]

約数ペア:

[(1, 20319130), (2, 10159565), (5, 4063826), (10, 2031913), (13, 1563010), (26, 781505), (65, 312602), (130, 156301), (149, 136370), (298, 68185), (745, 27274), (1049, 19370), (1490, 13637), (1937, 10490), (2098, 9685), (3874, 5245)]