311940728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{39829}}^1$

素因数の和:39935

約数の個数: 32

約数和(自身を含む): 645246000

約数和(自身を除く): 333305272

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 3916, 7832, 39829, 79658, 159316, 318632, 438119, 876238, 1752476, 3504952, 3544781, 7089562, 14179124, 28358248, 38992591, 77985182, 155970364, 311940728]

約数ペア:

[(1, 311940728), (2, 155970364), (4, 77985182), (8, 38992591), (11, 28358248), (22, 14179124), (44, 7089562), (88, 3544781), (89, 3504952), (178, 1752476), (356, 876238), (712, 438119), (979, 318632), (1958, 159316), (3916, 79658), (7832, 39829)]