81312236

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{2089}}^1$

素因数の和:2393

約数の個数: 24

約数和(自身を含む): 146768160

約数和(自身を除く): 65455924

約数列:

[1, 2, 4, 37, 74, 148, 263, 526, 1052, 2089, 4178, 8356, 9731, 19462, 38924, 77293, 154586, 309172, 549407, 1098814, 2197628, 20328059, 40656118, 81312236]

約数ペア:

[(1, 81312236), (2, 40656118), (4, 20328059), (37, 2197628), (74, 1098814), (148, 549407), (263, 309172), (526, 154586), (1052, 77293), (2089, 38924), (4178, 19462), (8356, 9731)]