19481540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74929}}^1$

素因数の和:74951

約数の個数: 24

約数和(自身を含む): 44058840

約数和(自身を除く): 24577300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74929, 149858, 299716, 374645, 749290, 974077, 1498580, 1948154, 3896308, 4870385, 9740770, 19481540]

約数ペア:

[(1, 19481540), (2, 9740770), (4, 4870385), (5, 3896308), (10, 1948154), (13, 1498580), (20, 974077), (26, 749290), (52, 374645), (65, 299716), (130, 149858), (260, 74929)]