123456255

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1511}}^1$

素因数の和:1951

約数の個数: 32

約数和(自身を含む): 213373440

約数和(自身を除く): 89917185

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 419, 1257, 1511, 2095, 4533, 5447, 6285, 7555, 16341, 19643, 22665, 27235, 58929, 81705, 98215, 294645, 633109, 1899327, 3165545, 8230417, 9496635, 24691251, 41152085, 123456255]

約数ペア:

[(1, 123456255), (3, 41152085), (5, 24691251), (13, 9496635), (15, 8230417), (39, 3165545), (65, 1899327), (195, 633109), (419, 294645), (1257, 98215), (1511, 81705), (2095, 58929), (4533, 27235), (5447, 22665), (6285, 19643), (7555, 16341)]