1321375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^2$

素因数の和:88

約数の個数: 24

約数和(自身を含む): 1858896

約数和(自身を除く): 537521

約数列:

[1, 5, 11, 25, 31, 55, 125, 155, 275, 341, 775, 961, 1375, 1705, 3875, 4805, 8525, 10571, 24025, 42625, 52855, 120125, 264275, 1321375]

約数ペア:

[(1, 1321375), (5, 264275), (11, 120125), (25, 52855), (31, 42625), (55, 24025), (125, 10571), (155, 8525), (275, 4805), (341, 3875), (775, 1705), (961, 1375)]