18542420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71317}}^1$

素因数の和:71339

約数の個数: 24

約数和(自身を含む): 41934984

約数和(自身を除く): 23392564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71317, 142634, 285268, 356585, 713170, 927121, 1426340, 1854242, 3708484, 4635605, 9271210, 18542420]

約数ペア:

[(1, 18542420), (2, 9271210), (4, 4635605), (5, 3708484), (10, 1854242), (13, 1426340), (20, 927121), (26, 713170), (52, 356585), (65, 285268), (130, 142634), (260, 71317)]