343640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1$

素因数の和:104

約数の個数: 48

約数和(自身を含む): 861840

約数和(自身を除く): 518200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 121, 142, 220, 242, 284, 355, 440, 484, 568, 605, 710, 781, 968, 1210, 1420, 1562, 2420, 2840, 3124, 3905, 4840, 6248, 7810, 8591, 15620, 17182, 31240, 34364, 42955, 68728, 85910, 171820, 343640]

約数ペア:

[(1, 343640), (2, 171820), (4, 85910), (5, 68728), (8, 42955), (10, 34364), (11, 31240), (20, 17182), (22, 15620), (40, 8591), (44, 7810), (55, 6248), (71, 4840), (88, 3905), (110, 3124), (121, 2840), (142, 2420), (220, 1562), (242, 1420), (284, 1210), (355, 968), (440, 781), (484, 710), (568, 605)]