171820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1$

素因数の和:102

約数の個数: 36

約数和(自身を含む): 402192

約数和(自身を除く): 230372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 142, 220, 242, 284, 355, 484, 605, 710, 781, 1210, 1420, 1562, 2420, 3124, 3905, 7810, 8591, 15620, 17182, 34364, 42955, 85910, 171820]

約数ペア:

[(1, 171820), (2, 85910), (4, 42955), (5, 34364), (10, 17182), (11, 15620), (20, 8591), (22, 7810), (44, 3905), (55, 3124), (71, 2420), (110, 1562), (121, 1420), (142, 1210), (220, 781), (242, 710), (284, 605), (355, 484)]