28480716

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 84913920

約数和(自身を除く): 56433204

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 33, 36, 44, 46, 53, 59, 66, 69, 92, 99, 106, 118, 132, 138, 159, 177, 198, 207, 212, 236, 253, 276, 318, 354, 396, 414, 477, 506, 531, 583, 636, 649, 708, 759, 828, 954, 1012, 1062, 1166, 1219, 1298, 1357, 1518, 1749, 1908, 1947, 2124, 2277, 2332, 2438, 2596, 2714, 3036, 3127, 3498, 3657, 3894, 4071, 4554, 4876, 5247, 5428, 5841, 6254, 6996, 7314, 7788, 8142, 9108, 9381, 10494, 10971, 11682, 12213, 12508, 13409, 14628, 14927, 16284, 18762, 20988, 21942, 23364, 24426, 26818, 28143, 29854, 34397, 37524, 40227, 43884, 44781, 48852, 53636, 56286, 59708, 68794, 71921, 80454, 89562, 103191, 112572, 120681, 134343, 137588, 143842, 160908, 179124, 206382, 215763, 241362, 268686, 287684, 309573, 412764, 431526, 482724, 537372, 619146, 647289, 791131, 863052, 1238292, 1294578, 1582262, 2373393, 2589156, 3164524, 4746786, 7120179, 9493572, 14240358, 28480716]

約数ペア:

[(1, 28480716), (2, 14240358), (3, 9493572), (4, 7120179), (6, 4746786), (9, 3164524), (11, 2589156), (12, 2373393), (18, 1582262), (22, 1294578), (23, 1238292), (33, 863052), (36, 791131), (44, 647289), (46, 619146), (53, 537372), (59, 482724), (66, 431526), (69, 412764), (92, 309573), (99, 287684), (106, 268686), (118, 241362), (132, 215763), (138, 206382), (159, 179124), (177, 160908), (198, 143842), (207, 137588), (212, 134343), (236, 120681), (253, 112572), (276, 103191), (318, 89562), (354, 80454), (396, 71921), (414, 68794), (477, 59708), (506, 56286), (531, 53636), (583, 48852), (636, 44781), (649, 43884), (708, 40227), (759, 37524), (828, 34397), (954, 29854), (1012, 28143), (1062, 26818), (1166, 24426), (1219, 23364), (1298, 21942), (1357, 20988), (1518, 18762), (1749, 16284), (1908, 14927), (1947, 14628), (2124, 13409), (2277, 12508), (2332, 12213), (2438, 11682), (2596, 10971), (2714, 10494), (3036, 9381), (3127, 9108), (3498, 8142), (3657, 7788), (3894, 7314), (4071, 6996), (4554, 6254), (4876, 5841), (5247, 5428)]