81661245

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1\times {\mathrm{541}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 135803520

約数和(自身を除く): 54142275

約数列:

[1, 3, 5, 15, 29, 87, 145, 347, 435, 541, 1041, 1623, 1735, 2705, 5205, 8115, 10063, 15689, 30189, 47067, 50315, 78445, 150945, 187727, 235335, 563181, 938635, 2815905, 5444083, 16332249, 27220415, 81661245]

約数ペア:

[(1, 81661245), (3, 27220415), (5, 16332249), (15, 5444083), (29, 2815905), (87, 938635), (145, 563181), (347, 235335), (435, 187727), (541, 150945), (1041, 78445), (1623, 50315), (1735, 47067), (2705, 30189), (5205, 15689), (8115, 10063)]