81220465

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{11149}}^1$

素因数の和:11232

約数の個数: 16

約数和(自身を含む): 102758400

約数和(自身を除く): 21537935

約数列:

[1, 5, 31, 47, 155, 235, 1457, 7285, 11149, 55745, 345619, 524003, 1728095, 2620015, 16244093, 81220465]

約数ペア:

[(1, 81220465), (5, 16244093), (31, 2620015), (47, 1728095), (155, 524003), (235, 345619), (1457, 55745), (7285, 11149)]