639221544

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^3\times {\mathrm{449}}^1$

素因数の和:506

約数の個数: 160

約数和(自身を含む): 1943865000

約数和(自身を除く): 1304643456

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 169, 216, 234, 312, 324, 338, 351, 449, 468, 507, 648, 676, 702, 898, 936, 1014, 1053, 1347, 1352, 1404, 1521, 1796, 2028, 2106, 2197, 2694, 2808, 3042, 3592, 4041, 4056, 4212, 4394, 4563, 5388, 5837, 6084, 6591, 8082, 8424, 8788, 9126, 10776, 11674, 12123, 12168, 13182, 13689, 16164, 17511, 17576, 18252, 19773, 23348, 24246, 26364, 27378, 32328, 35022, 36369, 36504, 39546, 46696, 48492, 52533, 52728, 54756, 59319, 70044, 72738, 75881, 79092, 96984, 105066, 109512, 118638, 140088, 145476, 151762, 157599, 158184, 177957, 210132, 227643, 237276, 290952, 303524, 315198, 355914, 420264, 455286, 472797, 474552, 607048, 630396, 682929, 711828, 910572, 945594, 986453, 1260792, 1365858, 1423656, 1821144, 1891188, 1972906, 2048787, 2731716, 2959359, 3782376, 3945812, 4097574, 5463432, 5918718, 6146361, 7891624, 8195148, 8878077, 11837436, 12292722, 16390296, 17756154, 23674872, 24585444, 26634231, 35512308, 49170888, 53268462, 71024616, 79902693, 106536924, 159805386, 213073848, 319610772, 639221544]

約数ペア:

[(1, 639221544), (2, 319610772), (3, 213073848), (4, 159805386), (6, 106536924), (8, 79902693), (9, 71024616), (12, 53268462), (13, 49170888), (18, 35512308), (24, 26634231), (26, 24585444), (27, 23674872), (36, 17756154), (39, 16390296), (52, 12292722), (54, 11837436), (72, 8878077), (78, 8195148), (81, 7891624), (104, 6146361), (108, 5918718), (117, 5463432), (156, 4097574), (162, 3945812), (169, 3782376), (216, 2959359), (234, 2731716), (312, 2048787), (324, 1972906), (338, 1891188), (351, 1821144), (449, 1423656), (468, 1365858), (507, 1260792), (648, 986453), (676, 945594), (702, 910572), (898, 711828), (936, 682929), (1014, 630396), (1053, 607048), (1347, 474552), (1352, 472797), (1404, 455286), (1521, 420264), (1796, 355914), (2028, 315198), (2106, 303524), (2197, 290952), (2694, 237276), (2808, 227643), (3042, 210132), (3592, 177957), (4041, 158184), (4056, 157599), (4212, 151762), (4394, 145476), (4563, 140088), (5388, 118638), (5837, 109512), (6084, 105066), (6591, 96984), (8082, 79092), (8424, 75881), (8788, 72738), (9126, 70044), (10776, 59319), (11674, 54756), (12123, 52728), (12168, 52533), (13182, 48492), (13689, 46696), (16164, 39546), (17511, 36504), (17576, 36369), (18252, 35022), (19773, 32328), (23348, 27378), (24246, 26364)]