13778775

素因数分解:

$3^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 25668000

約数和(自身を除く): 11889225

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 137, 149, 225, 411, 447, 675, 685, 745, 1233, 1341, 2055, 2235, 3425, 3699, 3725, 4023, 6165, 6705, 10275, 11175, 18495, 20115, 20413, 30825, 33525, 61239, 92475, 100575, 102065, 183717, 306195, 510325, 551151, 918585, 1530975, 2755755, 4592925, 13778775]

約数ペア:

[(1, 13778775), (3, 4592925), (5, 2755755), (9, 1530975), (15, 918585), (25, 551151), (27, 510325), (45, 306195), (75, 183717), (135, 102065), (137, 100575), (149, 92475), (225, 61239), (411, 33525), (447, 30825), (675, 20413), (685, 20115), (745, 18495), (1233, 11175), (1341, 10275), (2055, 6705), (2235, 6165), (3425, 4023), (3699, 3725)]