81555255

素因数分解:

$3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2549}}^1$

素因数の和:2645

約数の個数: 40

約数和(自身を含む): 148104000

約数和(自身を除く): 66548745

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 81, 135, 237, 395, 405, 711, 1185, 2133, 2549, 3555, 6399, 7647, 10665, 12745, 22941, 31995, 38235, 68823, 114705, 201371, 206469, 344115, 604113, 1006855, 1032345, 1812339, 3020565, 5437017, 9061695, 16311051, 27185085, 81555255]

約数ペア:

[(1, 81555255), (3, 27185085), (5, 16311051), (9, 9061695), (15, 5437017), (27, 3020565), (45, 1812339), (79, 1032345), (81, 1006855), (135, 604113), (237, 344115), (395, 206469), (405, 201371), (711, 114705), (1185, 68823), (2133, 38235), (2549, 31995), (3555, 22941), (6399, 12745), (7647, 10665)]