1981011228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{709}}^1$

素因数の和:820

約数の個数: 192

約数和(自身を含む): 5801779200

約数和(自身を除く): 3820767972

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 31, 37, 42, 58, 62, 74, 84, 87, 93, 111, 116, 124, 148, 174, 186, 203, 217, 222, 259, 348, 372, 406, 434, 444, 518, 609, 651, 709, 777, 812, 868, 899, 1036, 1073, 1147, 1218, 1302, 1418, 1554, 1798, 2127, 2146, 2294, 2436, 2604, 2697, 2836, 3108, 3219, 3441, 3596, 4254, 4292, 4588, 4963, 5394, 6293, 6438, 6882, 7511, 8029, 8508, 9926, 10788, 12586, 12876, 13764, 14889, 15022, 16058, 18879, 19852, 20561, 21979, 22533, 24087, 25172, 26233, 29778, 30044, 32116, 33263, 37758, 41122, 43958, 45066, 48174, 52466, 59556, 61683, 65937, 66526, 75516, 78699, 82244, 87916, 90132, 96348, 99789, 104932, 123366, 131874, 133052, 143927, 153853, 157398, 183631, 199578, 232841, 246732, 263748, 287854, 307706, 314796, 367262, 399156, 431781, 461559, 465682, 550893, 575708, 615412, 637391, 698523, 734524, 760757, 813223, 863562, 923118, 931364, 1101786, 1274782, 1397046, 1521514, 1626446, 1727124, 1846236, 1912173, 2203572, 2282271, 2439669, 2549564, 2794092, 3043028, 3252892, 3824346, 4461737, 4564542, 4879338, 5325299, 5692561, 7648692, 8923474, 9129084, 9758676, 10650598, 11385122, 13385211, 15975897, 17077683, 17846948, 21301196, 22770244, 23583467, 26770422, 31951794, 34155366, 47166934, 53540844, 63903588, 68310732, 70750401, 94333868, 141500802, 165084269, 283001604, 330168538, 495252807, 660337076, 990505614, 1981011228]

約数ペア:

[(1, 1981011228), (2, 990505614), (3, 660337076), (4, 495252807), (6, 330168538), (7, 283001604), (12, 165084269), (14, 141500802), (21, 94333868), (28, 70750401), (29, 68310732), (31, 63903588), (37, 53540844), (42, 47166934), (58, 34155366), (62, 31951794), (74, 26770422), (84, 23583467), (87, 22770244), (93, 21301196), (111, 17846948), (116, 17077683), (124, 15975897), (148, 13385211), (174, 11385122), (186, 10650598), (203, 9758676), (217, 9129084), (222, 8923474), (259, 7648692), (348, 5692561), (372, 5325299), (406, 4879338), (434, 4564542), (444, 4461737), (518, 3824346), (609, 3252892), (651, 3043028), (709, 2794092), (777, 2549564), (812, 2439669), (868, 2282271), (899, 2203572), (1036, 1912173), (1073, 1846236), (1147, 1727124), (1218, 1626446), (1302, 1521514), (1418, 1397046), (1554, 1274782), (1798, 1101786), (2127, 931364), (2146, 923118), (2294, 863562), (2436, 813223), (2604, 760757), (2697, 734524), (2836, 698523), (3108, 637391), (3219, 615412), (3441, 575708), (3596, 550893), (4254, 465682), (4292, 461559), (4588, 431781), (4963, 399156), (5394, 367262), (6293, 314796), (6438, 307706), (6882, 287854), (7511, 263748), (8029, 246732), (8508, 232841), (9926, 199578), (10788, 183631), (12586, 157398), (12876, 153853), (13764, 143927), (14889, 133052), (15022, 131874), (16058, 123366), (18879, 104932), (19852, 99789), (20561, 96348), (21979, 90132), (22533, 87916), (24087, 82244), (25172, 78699), (26233, 75516), (29778, 66526), (30044, 65937), (32116, 61683), (33263, 59556), (37758, 52466), (41122, 48174), (43958, 45066)]