128540775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4211}}^1$

素因数の和:4272

約数の個数: 48

約数和(自身を含む): 238163328

約数和(自身を除く): 109622553

約数列:

[1, 3, 5, 11, 15, 25, 33, 37, 55, 75, 111, 165, 185, 275, 407, 555, 825, 925, 1221, 2035, 2775, 4211, 6105, 10175, 12633, 21055, 30525, 46321, 63165, 105275, 138963, 155807, 231605, 315825, 467421, 694815, 779035, 1158025, 1713877, 2337105, 3474075, 3895175, 5141631, 8569385, 11685525, 25708155, 42846925, 128540775]

約数ペア:

[(1, 128540775), (3, 42846925), (5, 25708155), (11, 11685525), (15, 8569385), (25, 5141631), (33, 3895175), (37, 3474075), (55, 2337105), (75, 1713877), (111, 1158025), (165, 779035), (185, 694815), (275, 467421), (407, 315825), (555, 231605), (825, 155807), (925, 138963), (1221, 105275), (2035, 63165), (2775, 46321), (4211, 30525), (6105, 21055), (10175, 12633)]