1997956488

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{1493}}^1$

素因数の和:1687

約数の個数: 128

約数和(自身を含む): 5640865920

約数和(自身を除く): 3642909432

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 37, 44, 66, 74, 88, 111, 132, 137, 148, 222, 264, 274, 296, 407, 411, 444, 548, 814, 822, 888, 1096, 1221, 1493, 1507, 1628, 1644, 2442, 2986, 3014, 3256, 3288, 4479, 4521, 4884, 5069, 5972, 6028, 8958, 9042, 9768, 10138, 11944, 12056, 15207, 16423, 17916, 18084, 20276, 30414, 32846, 35832, 36168, 40552, 49269, 55241, 55759, 60828, 65692, 98538, 110482, 111518, 121656, 131384, 165723, 167277, 197076, 204541, 220964, 223036, 331446, 334554, 394152, 409082, 441928, 446072, 607651, 613623, 662892, 669108, 818164, 1215302, 1227246, 1325784, 1338216, 1636328, 1822953, 2249951, 2430604, 2454492, 3645906, 4499902, 4861208, 4908984, 6749853, 7291812, 7568017, 8999804, 13499706, 14583624, 15136034, 17999608, 22704051, 26999412, 30272068, 45408102, 53998824, 60544136, 83248187, 90816204, 166496374, 181632408, 249744561, 332992748, 499489122, 665985496, 998978244, 1997956488]

約数ペア:

[(1, 1997956488), (2, 998978244), (3, 665985496), (4, 499489122), (6, 332992748), (8, 249744561), (11, 181632408), (12, 166496374), (22, 90816204), (24, 83248187), (33, 60544136), (37, 53998824), (44, 45408102), (66, 30272068), (74, 26999412), (88, 22704051), (111, 17999608), (132, 15136034), (137, 14583624), (148, 13499706), (222, 8999804), (264, 7568017), (274, 7291812), (296, 6749853), (407, 4908984), (411, 4861208), (444, 4499902), (548, 3645906), (814, 2454492), (822, 2430604), (888, 2249951), (1096, 1822953), (1221, 1636328), (1493, 1338216), (1507, 1325784), (1628, 1227246), (1644, 1215302), (2442, 818164), (2986, 669108), (3014, 662892), (3256, 613623), (3288, 607651), (4479, 446072), (4521, 441928), (4884, 409082), (5069, 394152), (5972, 334554), (6028, 331446), (8958, 223036), (9042, 220964), (9768, 204541), (10138, 197076), (11944, 167277), (12056, 165723), (15207, 131384), (16423, 121656), (17916, 111518), (18084, 110482), (20276, 98538), (30414, 65692), (32846, 60828), (35832, 55759), (36168, 55241), (40552, 49269)]