261105

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1$

素因数の和:137

約数の個数: 24

約数和(自身を含む): 456768

約数和(自身を除く): 195663

約数列:

[1, 3, 5, 13, 15, 39, 65, 103, 169, 195, 309, 507, 515, 845, 1339, 1545, 2535, 4017, 6695, 17407, 20085, 52221, 87035, 261105]

約数ペア:

[(1, 261105), (3, 87035), (5, 52221), (13, 20085), (15, 17407), (39, 6695), (65, 4017), (103, 2535), (169, 1545), (195, 1339), (309, 845), (507, 515)]