81723620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{371471}}^1$

素因数の和:371491

約数の個数: 24

約数和(自身を含む): 187221888

約数和(自身を除く): 105498268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 371471, 742942, 1485884, 1857355, 3714710, 4086181, 7429420, 8172362, 16344724, 20430905, 40861810, 81723620]

約数ペア:

[(1, 81723620), (2, 40861810), (4, 20430905), (5, 16344724), (10, 8172362), (11, 7429420), (20, 4086181), (22, 3714710), (44, 1857355), (55, 1485884), (110, 742942), (220, 371471)]