311355

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:76

約数の個数: 48

約数和(自身を含む): 640224

約数和(自身を除く): 328869

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 37, 45, 51, 55, 85, 99, 111, 153, 165, 185, 187, 255, 333, 407, 495, 555, 561, 629, 765, 935, 1221, 1665, 1683, 1887, 2035, 2805, 3145, 3663, 5661, 6105, 6919, 8415, 9435, 18315, 20757, 28305, 34595, 62271, 103785, 311355]

約数ペア:

[(1, 311355), (3, 103785), (5, 62271), (9, 34595), (11, 28305), (15, 20757), (17, 18315), (33, 9435), (37, 8415), (45, 6919), (51, 6105), (55, 5661), (85, 3663), (99, 3145), (111, 2805), (153, 2035), (165, 1887), (185, 1683), (187, 1665), (255, 1221), (333, 935), (407, 765), (495, 629), (555, 561)]