991016208

素因数分解:

$2^4\times 3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2801}}^1$

素因数の和:2844

約数の個数: 240

約数和(自身を含む): 3541190016

約数和(自身を除く): 2550173808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 36, 39, 42, 48, 52, 54, 56, 63, 72, 78, 81, 84, 91, 104, 108, 112, 117, 126, 144, 156, 162, 168, 182, 189, 208, 216, 234, 243, 252, 273, 312, 324, 336, 351, 364, 378, 432, 468, 486, 504, 546, 567, 624, 648, 702, 728, 756, 819, 936, 972, 1008, 1053, 1092, 1134, 1296, 1404, 1456, 1512, 1638, 1701, 1872, 1944, 2106, 2184, 2268, 2457, 2801, 2808, 3024, 3159, 3276, 3402, 3888, 4212, 4368, 4536, 4914, 5602, 5616, 6318, 6552, 6804, 7371, 8403, 8424, 9072, 9828, 11204, 12636, 13104, 13608, 14742, 16806, 16848, 19607, 19656, 22113, 22408, 25209, 25272, 27216, 29484, 33612, 36413, 39214, 39312, 44226, 44816, 50418, 50544, 58821, 58968, 67224, 72826, 75627, 78428, 88452, 100836, 109239, 117642, 117936, 134448, 145652, 151254, 156856, 176463, 176904, 201672, 218478, 226881, 235284, 254891, 291304, 302508, 313712, 327717, 352926, 353808, 403344, 436956, 453762, 470568, 509782, 529389, 582608, 605016, 655434, 680643, 705852, 764673, 873912, 907524, 941136, 983151, 1019564, 1058778, 1210032, 1310868, 1361286, 1411704, 1529346, 1588167, 1747824, 1815048, 1966302, 2039128, 2117556, 2294019, 2621736, 2722572, 2823408, 2949453, 3058692, 3176334, 3630096, 3932604, 4078256, 4235112, 4588038, 4764501, 5243472, 5445144, 5898906, 6117384, 6352668, 6882057, 7865208, 8470224, 8848359, 9176076, 9529002, 10890288, 11797812, 12234768, 12705336, 13764114, 15730416, 17696718, 18352152, 19058004, 20646171, 23595624, 25410672, 27528228, 35393436, 36704304, 38116008, 41292342, 47191248, 55056456, 61938513, 70786872, 76232016, 82584684, 110112912, 123877026, 141573744, 165169368, 247754052, 330338736, 495508104, 991016208]

約数ペア:

[(1, 991016208), (2, 495508104), (3, 330338736), (4, 247754052), (6, 165169368), (7, 141573744), (8, 123877026), (9, 110112912), (12, 82584684), (13, 76232016), (14, 70786872), (16, 61938513), (18, 55056456), (21, 47191248), (24, 41292342), (26, 38116008), (27, 36704304), (28, 35393436), (36, 27528228), (39, 25410672), (42, 23595624), (48, 20646171), (52, 19058004), (54, 18352152), (56, 17696718), (63, 15730416), (72, 13764114), (78, 12705336), (81, 12234768), (84, 11797812), (91, 10890288), (104, 9529002), (108, 9176076), (112, 8848359), (117, 8470224), (126, 7865208), (144, 6882057), (156, 6352668), (162, 6117384), (168, 5898906), (182, 5445144), (189, 5243472), (208, 4764501), (216, 4588038), (234, 4235112), (243, 4078256), (252, 3932604), (273, 3630096), (312, 3176334), (324, 3058692), (336, 2949453), (351, 2823408), (364, 2722572), (378, 2621736), (432, 2294019), (468, 2117556), (486, 2039128), (504, 1966302), (546, 1815048), (567, 1747824), (624, 1588167), (648, 1529346), (702, 1411704), (728, 1361286), (756, 1310868), (819, 1210032), (936, 1058778), (972, 1019564), (1008, 983151), (1053, 941136), (1092, 907524), (1134, 873912), (1296, 764673), (1404, 705852), (1456, 680643), (1512, 655434), (1638, 605016), (1701, 582608), (1872, 529389), (1944, 509782), (2106, 470568), (2184, 453762), (2268, 436956), (2457, 403344), (2801, 353808), (2808, 352926), (3024, 327717), (3159, 313712), (3276, 302508), (3402, 291304), (3888, 254891), (4212, 235284), (4368, 226881), (4536, 218478), (4914, 201672), (5602, 176904), (5616, 176463), (6318, 156856), (6552, 151254), (6804, 145652), (7371, 134448), (8403, 117936), (8424, 117642), (9072, 109239), (9828, 100836), (11204, 88452), (12636, 78428), (13104, 75627), (13608, 72826), (14742, 67224), (16806, 58968), (16848, 58821), (19607, 50544), (19656, 50418), (22113, 44816), (22408, 44226), (25209, 39312), (25272, 39214), (27216, 36413), (29484, 33612)]