28861525

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 47496960

約数和(自身を除く): 18635435

約数列:

[1, 5, 7, 11, 25, 29, 35, 47, 55, 77, 121, 145, 175, 203, 235, 275, 319, 329, 385, 517, 605, 725, 847, 1015, 1175, 1363, 1595, 1645, 1925, 2233, 2585, 3025, 3509, 3619, 4235, 5075, 5687, 6815, 7975, 8225, 9541, 11165, 12925, 14993, 17545, 18095, 21175, 24563, 28435, 34075, 39809, 47705, 55825, 74965, 87725, 90475, 104951, 122815, 142175, 164923, 199045, 238525, 374825, 524755, 614075, 824615, 995225, 1154461, 2623775, 4123075, 5772305, 28861525]

約数ペア:

[(1, 28861525), (5, 5772305), (7, 4123075), (11, 2623775), (25, 1154461), (29, 995225), (35, 824615), (47, 614075), (55, 524755), (77, 374825), (121, 238525), (145, 199045), (175, 164923), (203, 142175), (235, 122815), (275, 104951), (319, 90475), (329, 87725), (385, 74965), (517, 55825), (605, 47705), (725, 39809), (847, 34075), (1015, 28435), (1175, 24563), (1363, 21175), (1595, 18095), (1645, 17545), (1925, 14993), (2233, 12925), (2585, 11165), (3025, 9541), (3509, 8225), (3619, 7975), (4235, 6815), (5075, 5687)]