18312775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{67}}^1$

素因数の和:148

約数の個数: 36

約数和(自身を含む): 25704952

約数和(自身を除く): 7392177

約数列:

[1, 5, 13, 25, 29, 65, 67, 145, 325, 335, 377, 725, 841, 871, 1675, 1885, 1943, 4205, 4355, 9425, 9715, 10933, 21025, 21775, 25259, 48575, 54665, 56347, 126295, 273325, 281735, 631475, 732511, 1408675, 3662555, 18312775]

約数ペア:

[(1, 18312775), (5, 3662555), (13, 1408675), (25, 732511), (29, 631475), (65, 281735), (67, 273325), (145, 126295), (325, 56347), (335, 54665), (377, 48575), (725, 25259), (841, 21775), (871, 21025), (1675, 10933), (1885, 9715), (1943, 9425), (4205, 4355)]