81286695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1223}}^1$

素因数の和:1452

約数の個数: 48

約数和(自身を含む): 161920512

約数和(自身を除く): 80633817

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 211, 315, 633, 1055, 1223, 1477, 1899, 3165, 3669, 4431, 6115, 7385, 8561, 9495, 11007, 13293, 18345, 22155, 25683, 42805, 55035, 66465, 77049, 128415, 258053, 385245, 774159, 1290265, 1806371, 2322477, 3870795, 5419113, 9031855, 11612385, 16257339, 27095565, 81286695]

約数ペア:

[(1, 81286695), (3, 27095565), (5, 16257339), (7, 11612385), (9, 9031855), (15, 5419113), (21, 3870795), (35, 2322477), (45, 1806371), (63, 1290265), (105, 774159), (211, 385245), (315, 258053), (633, 128415), (1055, 77049), (1223, 66465), (1477, 55035), (1899, 42805), (3165, 25683), (3669, 22155), (4431, 18345), (6115, 13293), (7385, 11007), (8561, 9495)]