638303328

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1051

約数の個数: 240

約数和(自身を含む): 2130171120

約数和(自身を除く): 1491867792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 27, 32, 36, 38, 39, 48, 52, 54, 57, 72, 76, 78, 81, 96, 104, 108, 114, 117, 144, 152, 156, 162, 171, 208, 216, 228, 234, 247, 288, 304, 312, 324, 342, 351, 416, 432, 456, 468, 494, 513, 608, 624, 648, 684, 702, 741, 864, 912, 936, 988, 997, 1026, 1053, 1248, 1296, 1368, 1404, 1482, 1539, 1824, 1872, 1976, 1994, 2052, 2106, 2223, 2592, 2736, 2808, 2964, 2991, 3078, 3744, 3952, 3988, 4104, 4212, 4446, 5472, 5616, 5928, 5982, 6156, 6669, 7904, 7976, 8208, 8424, 8892, 8973, 11232, 11856, 11964, 12312, 12961, 13338, 15952, 16416, 16848, 17784, 17946, 18943, 20007, 23712, 23928, 24624, 25922, 26676, 26919, 31904, 33696, 35568, 35892, 37886, 38883, 40014, 47856, 49248, 51844, 53352, 53838, 56829, 71136, 71784, 75772, 77766, 80028, 80757, 95712, 103688, 106704, 107676, 113658, 116649, 143568, 151544, 155532, 160056, 161514, 170487, 207376, 213408, 215352, 227316, 233298, 246259, 287136, 303088, 311064, 320112, 323028, 340974, 349947, 414752, 430704, 454632, 466596, 492518, 511461, 606176, 622128, 640224, 646056, 681948, 699894, 738777, 861408, 909264, 933192, 985036, 1022922, 1049841, 1244256, 1292112, 1363896, 1399788, 1477554, 1534383, 1818528, 1866384, 1970072, 2045844, 2099682, 2216331, 2584224, 2727792, 2799576, 2955108, 3068766, 3732768, 3940144, 4091688, 4199364, 4432662, 5455584, 5599152, 5910216, 6137532, 6648993, 7880288, 8183376, 8398728, 8865324, 11198304, 11820432, 12275064, 13297986, 16366752, 16797456, 17730648, 19946979, 23640864, 24550128, 26595972, 33594912, 35461296, 39893958, 49100256, 53191944, 70922592, 79787916, 106383888, 159575832, 212767776, 319151664, 638303328]

約数ペア:

[(1, 638303328), (2, 319151664), (3, 212767776), (4, 159575832), (6, 106383888), (8, 79787916), (9, 70922592), (12, 53191944), (13, 49100256), (16, 39893958), (18, 35461296), (19, 33594912), (24, 26595972), (26, 24550128), (27, 23640864), (32, 19946979), (36, 17730648), (38, 16797456), (39, 16366752), (48, 13297986), (52, 12275064), (54, 11820432), (57, 11198304), (72, 8865324), (76, 8398728), (78, 8183376), (81, 7880288), (96, 6648993), (104, 6137532), (108, 5910216), (114, 5599152), (117, 5455584), (144, 4432662), (152, 4199364), (156, 4091688), (162, 3940144), (171, 3732768), (208, 3068766), (216, 2955108), (228, 2799576), (234, 2727792), (247, 2584224), (288, 2216331), (304, 2099682), (312, 2045844), (324, 1970072), (342, 1866384), (351, 1818528), (416, 1534383), (432, 1477554), (456, 1399788), (468, 1363896), (494, 1292112), (513, 1244256), (608, 1049841), (624, 1022922), (648, 985036), (684, 933192), (702, 909264), (741, 861408), (864, 738777), (912, 699894), (936, 681948), (988, 646056), (997, 640224), (1026, 622128), (1053, 606176), (1248, 511461), (1296, 492518), (1368, 466596), (1404, 454632), (1482, 430704), (1539, 414752), (1824, 349947), (1872, 340974), (1976, 323028), (1994, 320112), (2052, 311064), (2106, 303088), (2223, 287136), (2592, 246259), (2736, 233298), (2808, 227316), (2964, 215352), (2991, 213408), (3078, 207376), (3744, 170487), (3952, 161514), (3988, 160056), (4104, 155532), (4212, 151544), (4446, 143568), (5472, 116649), (5616, 113658), (5928, 107676), (5982, 106704), (6156, 103688), (6669, 95712), (7904, 80757), (7976, 80028), (8208, 77766), (8424, 75772), (8892, 71784), (8973, 71136), (11232, 56829), (11856, 53838), (11964, 53352), (12312, 51844), (12961, 49248), (13338, 47856), (15952, 40014), (16416, 38883), (16848, 37886), (17784, 35892), (17946, 35568), (18943, 33696), (20007, 31904), (23712, 26919), (23928, 26676), (24624, 25922)]