81341572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{15187}}^1$

素因数の和:15307

約数の個数: 24

約数和(自身を含む): 154796096

約数和(自身を除く): 73454524

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 5356, 15187, 30374, 60748, 197431, 394862, 789724, 1564261, 3128522, 6257044, 20335393, 40670786, 81341572]

約数ペア:

[(1, 81341572), (2, 40670786), (4, 20335393), (13, 6257044), (26, 3128522), (52, 1564261), (103, 789724), (206, 394862), (412, 197431), (1339, 60748), (2678, 30374), (5356, 15187)]