640201212

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{463}}^1$

素因数の和:573

約数の個数: 192

約数和(自身を含む): 1995571200

約数和(自身を除く): 1355369988

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 59, 62, 63, 84, 93, 108, 118, 124, 126, 177, 186, 189, 217, 236, 252, 279, 354, 372, 378, 413, 434, 463, 531, 558, 651, 708, 756, 826, 837, 868, 926, 1062, 1116, 1239, 1302, 1389, 1593, 1652, 1674, 1829, 1852, 1953, 2124, 2478, 2604, 2778, 3186, 3241, 3348, 3658, 3717, 3906, 4167, 4956, 5487, 5556, 5859, 6372, 6482, 7316, 7434, 7812, 8334, 9723, 10974, 11151, 11718, 12501, 12803, 12964, 14353, 14868, 16461, 16668, 19446, 21948, 22302, 23436, 25002, 25606, 27317, 28706, 29169, 32922, 38409, 38892, 43059, 44604, 49383, 50004, 51212, 54634, 57412, 58338, 65844, 76818, 81951, 86118, 87507, 98766, 100471, 109268, 115227, 116676, 129177, 153636, 163902, 172236, 175014, 191219, 197532, 200942, 230454, 245853, 258354, 301413, 327804, 345681, 350028, 382438, 387531, 401884, 460908, 491706, 516708, 573657, 602826, 691362, 737559, 764876, 775062, 846827, 904239, 983412, 1147314, 1205652, 1382724, 1475118, 1550124, 1693654, 1720971, 1808478, 2294628, 2540481, 2712717, 2950236, 3387308, 3441942, 3616956, 5080962, 5162913, 5425434, 5927789, 6883884, 7621443, 10161924, 10325826, 10850868, 11855578, 15242886, 17783367, 20651652, 22864329, 23711156, 30485772, 35566734, 45728658, 53350101, 71133468, 91457316, 106700202, 160050303, 213400404, 320100606, 640201212]

約数ペア:

[(1, 640201212), (2, 320100606), (3, 213400404), (4, 160050303), (6, 106700202), (7, 91457316), (9, 71133468), (12, 53350101), (14, 45728658), (18, 35566734), (21, 30485772), (27, 23711156), (28, 22864329), (31, 20651652), (36, 17783367), (42, 15242886), (54, 11855578), (59, 10850868), (62, 10325826), (63, 10161924), (84, 7621443), (93, 6883884), (108, 5927789), (118, 5425434), (124, 5162913), (126, 5080962), (177, 3616956), (186, 3441942), (189, 3387308), (217, 2950236), (236, 2712717), (252, 2540481), (279, 2294628), (354, 1808478), (372, 1720971), (378, 1693654), (413, 1550124), (434, 1475118), (463, 1382724), (531, 1205652), (558, 1147314), (651, 983412), (708, 904239), (756, 846827), (826, 775062), (837, 764876), (868, 737559), (926, 691362), (1062, 602826), (1116, 573657), (1239, 516708), (1302, 491706), (1389, 460908), (1593, 401884), (1652, 387531), (1674, 382438), (1829, 350028), (1852, 345681), (1953, 327804), (2124, 301413), (2478, 258354), (2604, 245853), (2778, 230454), (3186, 200942), (3241, 197532), (3348, 191219), (3658, 175014), (3717, 172236), (3906, 163902), (4167, 153636), (4956, 129177), (5487, 116676), (5556, 115227), (5859, 109268), (6372, 100471), (6482, 98766), (7316, 87507), (7434, 86118), (7812, 81951), (8334, 76818), (9723, 65844), (10974, 58338), (11151, 57412), (11718, 54634), (12501, 51212), (12803, 50004), (12964, 49383), (14353, 44604), (14868, 43059), (16461, 38892), (16668, 38409), (19446, 32922), (21948, 29169), (22302, 28706), (23436, 27317), (25002, 25606)]