18987144

素因数分解:

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

素因数の和:155

約数の個数: 128

約数和(自身を含む): 55987200

約数和(自身を除く): 37000056

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 23, 24, 33, 44, 46, 53, 59, 66, 69, 88, 92, 106, 118, 132, 138, 159, 177, 184, 212, 236, 253, 264, 276, 318, 354, 424, 472, 506, 552, 583, 636, 649, 708, 759, 1012, 1166, 1219, 1272, 1298, 1357, 1416, 1518, 1749, 1947, 2024, 2332, 2438, 2596, 2714, 3036, 3127, 3498, 3657, 3894, 4071, 4664, 4876, 5192, 5428, 6072, 6254, 6996, 7314, 7788, 8142, 9381, 9752, 10856, 12508, 13409, 13992, 14628, 14927, 15576, 16284, 18762, 25016, 26818, 29256, 29854, 32568, 34397, 37524, 40227, 44781, 53636, 59708, 68794, 71921, 75048, 80454, 89562, 103191, 107272, 119416, 137588, 143842, 160908, 179124, 206382, 215763, 275176, 287684, 321816, 358248, 412764, 431526, 575368, 791131, 825528, 863052, 1582262, 1726104, 2373393, 3164524, 4746786, 6329048, 9493572, 18987144]

約数ペア:

[(1, 18987144), (2, 9493572), (3, 6329048), (4, 4746786), (6, 3164524), (8, 2373393), (11, 1726104), (12, 1582262), (22, 863052), (23, 825528), (24, 791131), (33, 575368), (44, 431526), (46, 412764), (53, 358248), (59, 321816), (66, 287684), (69, 275176), (88, 215763), (92, 206382), (106, 179124), (118, 160908), (132, 143842), (138, 137588), (159, 119416), (177, 107272), (184, 103191), (212, 89562), (236, 80454), (253, 75048), (264, 71921), (276, 68794), (318, 59708), (354, 53636), (424, 44781), (472, 40227), (506, 37524), (552, 34397), (583, 32568), (636, 29854), (649, 29256), (708, 26818), (759, 25016), (1012, 18762), (1166, 16284), (1219, 15576), (1272, 14927), (1298, 14628), (1357, 13992), (1416, 13409), (1518, 12508), (1749, 10856), (1947, 9752), (2024, 9381), (2332, 8142), (2438, 7788), (2596, 7314), (2714, 6996), (3036, 6254), (3127, 6072), (3498, 5428), (3657, 5192), (3894, 4876), (4071, 4664)]