81264501

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 129205440

約数和(自身を除く): 47940939

約数列:

[1, 3, 9, 19, 41, 57, 67, 123, 171, 173, 201, 369, 519, 603, 779, 1273, 1557, 2337, 2747, 3287, 3819, 7011, 7093, 8241, 9861, 11457, 11591, 21279, 24723, 29583, 34773, 52193, 63837, 104319, 134767, 156579, 220229, 404301, 469737, 475231, 660687, 1212903, 1425693, 1982061, 4277079, 9029389, 27088167, 81264501]

約数ペア:

[(1, 81264501), (3, 27088167), (9, 9029389), (19, 4277079), (41, 1982061), (57, 1425693), (67, 1212903), (123, 660687), (171, 475231), (173, 469737), (201, 404301), (369, 220229), (519, 156579), (603, 134767), (779, 104319), (1273, 63837), (1557, 52193), (2337, 34773), (2747, 29583), (3287, 24723), (3819, 21279), (7011, 11591), (7093, 11457), (8241, 9861)]