81113560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16759}}^1$

素因数の和:16792

約数の個数: 48

約数和(自身を含む): 200617200

約数和(自身を除く): 119503640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 16759, 33518, 67036, 83795, 134072, 167590, 184349, 335180, 368698, 670360, 737396, 921745, 1474792, 1843490, 2027839, 3686980, 4055678, 7373960, 8111356, 10139195, 16222712, 20278390, 40556780, 81113560]

約数ペア:

[(1, 81113560), (2, 40556780), (4, 20278390), (5, 16222712), (8, 10139195), (10, 8111356), (11, 7373960), (20, 4055678), (22, 3686980), (40, 2027839), (44, 1843490), (55, 1474792), (88, 921745), (110, 737396), (121, 670360), (220, 368698), (242, 335180), (440, 184349), (484, 167590), (605, 134072), (968, 83795), (1210, 67036), (2420, 33518), (4840, 16759)]