81100220

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{68729}}^1$

素因数の和:68797

約数の個数: 24

約数和(自身を含む): 173199600

約数和(自身を除く): 92099380

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 68729, 137458, 274916, 343645, 687290, 1374580, 4055011, 8110022, 16220044, 20275055, 40550110, 81100220]

約数ペア:

[(1, 81100220), (2, 40550110), (4, 20275055), (5, 16220044), (10, 8110022), (20, 4055011), (59, 1374580), (118, 687290), (236, 343645), (295, 274916), (590, 137458), (1180, 68729)]