28262745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 60383232

約数和(自身を除く): 32120487

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 47, 63, 69, 83, 105, 115, 141, 161, 207, 235, 249, 315, 329, 345, 415, 423, 483, 581, 705, 747, 805, 987, 1035, 1081, 1245, 1449, 1645, 1743, 1909, 2115, 2415, 2905, 2961, 3243, 3735, 3901, 4935, 5229, 5405, 5727, 7245, 7567, 8715, 9545, 9729, 11703, 13363, 14805, 16215, 17181, 19505, 22701, 26145, 27307, 28635, 35109, 37835, 40089, 48645, 58515, 66815, 68103, 81921, 85905, 89723, 113505, 120267, 136535, 175545, 200445, 245763, 269169, 340515, 409605, 448615, 601335, 628061, 807507, 1228815, 1345845, 1884183, 3140305, 4037535, 5652549, 9420915, 28262745]

約数ペア:

[(1, 28262745), (3, 9420915), (5, 5652549), (7, 4037535), (9, 3140305), (15, 1884183), (21, 1345845), (23, 1228815), (35, 807507), (45, 628061), (47, 601335), (63, 448615), (69, 409605), (83, 340515), (105, 269169), (115, 245763), (141, 200445), (161, 175545), (207, 136535), (235, 120267), (249, 113505), (315, 89723), (329, 85905), (345, 81921), (415, 68103), (423, 66815), (483, 58515), (581, 48645), (705, 40089), (747, 37835), (805, 35109), (987, 28635), (1035, 27307), (1081, 26145), (1245, 22701), (1449, 19505), (1645, 17181), (1743, 16215), (1909, 14805), (2115, 13363), (2415, 11703), (2905, 9729), (2961, 9545), (3243, 8715), (3735, 7567), (3901, 7245), (4935, 5727), (5229, 5405)]