81945454

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^2$

素因数の和:372

約数の個数: 24

約数和(自身を含む): 129323880

約数和(自身を除く): 47378426

約数列:

[1, 2, 37, 59, 74, 118, 137, 274, 2183, 4366, 5069, 8083, 10138, 16166, 18769, 37538, 299071, 598142, 694453, 1107371, 1388906, 2214742, 40972727, 81945454]

約数ペア:

[(1, 81945454), (2, 40972727), (37, 2214742), (59, 1388906), (74, 1107371), (118, 694453), (137, 598142), (274, 299071), (2183, 37538), (4366, 18769), (5069, 16166), (8083, 10138)]