639152172

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:804

約数の個数: 144

約数和(自身を含む): 1798917120

約数和(自身を除く): 1159764948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 43, 57, 62, 76, 86, 93, 114, 124, 129, 171, 172, 186, 228, 258, 279, 342, 372, 387, 516, 558, 589, 684, 701, 774, 817, 1116, 1178, 1333, 1402, 1548, 1634, 1767, 2103, 2356, 2451, 2666, 2804, 3268, 3534, 3999, 4206, 4902, 5301, 5332, 6309, 7068, 7353, 7998, 8412, 9804, 10602, 11997, 12618, 13319, 14706, 15996, 21204, 21731, 23994, 25236, 25327, 26638, 29412, 30143, 39957, 43462, 47988, 50654, 53276, 60286, 65193, 75981, 79914, 86924, 90429, 101308, 119871, 120572, 130386, 151962, 159828, 180858, 195579, 227943, 239742, 260772, 271287, 303924, 361716, 391158, 412889, 455886, 479484, 542574, 572717, 782316, 825778, 911772, 934433, 1085148, 1145434, 1238667, 1651556, 1718151, 1868866, 2290868, 2477334, 2803299, 3436302, 3716001, 3737732, 4954668, 5154453, 5606598, 6872604, 7432002, 8409897, 10308906, 11213196, 14864004, 16819794, 17754227, 20617812, 33639588, 35508454, 53262681, 71016908, 106525362, 159788043, 213050724, 319576086, 639152172]

約数ペア:

[(1, 639152172), (2, 319576086), (3, 213050724), (4, 159788043), (6, 106525362), (9, 71016908), (12, 53262681), (18, 35508454), (19, 33639588), (31, 20617812), (36, 17754227), (38, 16819794), (43, 14864004), (57, 11213196), (62, 10308906), (76, 8409897), (86, 7432002), (93, 6872604), (114, 5606598), (124, 5154453), (129, 4954668), (171, 3737732), (172, 3716001), (186, 3436302), (228, 2803299), (258, 2477334), (279, 2290868), (342, 1868866), (372, 1718151), (387, 1651556), (516, 1238667), (558, 1145434), (589, 1085148), (684, 934433), (701, 911772), (774, 825778), (817, 782316), (1116, 572717), (1178, 542574), (1333, 479484), (1402, 455886), (1548, 412889), (1634, 391158), (1767, 361716), (2103, 303924), (2356, 271287), (2451, 260772), (2666, 239742), (2804, 227943), (3268, 195579), (3534, 180858), (3999, 159828), (4206, 151962), (4902, 130386), (5301, 120572), (5332, 119871), (6309, 101308), (7068, 90429), (7353, 86924), (7998, 79914), (8412, 75981), (9804, 65193), (10602, 60286), (11997, 53276), (12618, 50654), (13319, 47988), (14706, 43462), (15996, 39957), (21204, 30143), (21731, 29412), (23994, 26638), (25236, 25327)]