648878880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:484

約数の個数: 288

約数和(自身を含む): 2335314240

約数和(自身を除く): 1686435360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 32, 38, 39, 40, 48, 52, 57, 60, 65, 76, 78, 80, 95, 96, 104, 114, 120, 130, 152, 156, 160, 169, 190, 195, 208, 228, 240, 247, 260, 285, 304, 312, 338, 380, 390, 416, 421, 456, 480, 494, 507, 520, 570, 608, 624, 676, 741, 760, 780, 842, 845, 912, 988, 1014, 1040, 1140, 1235, 1248, 1263, 1352, 1482, 1520, 1560, 1684, 1690, 1824, 1976, 2028, 2080, 2105, 2280, 2470, 2526, 2535, 2704, 2964, 3040, 3120, 3211, 3368, 3380, 3705, 3952, 4056, 4210, 4560, 4940, 5052, 5070, 5408, 5473, 5928, 6240, 6315, 6422, 6736, 6760, 7410, 7904, 7999, 8112, 8420, 9120, 9633, 9880, 10104, 10140, 10946, 11856, 12630, 12844, 13472, 13520, 14820, 15998, 16055, 16224, 16419, 16840, 19266, 19760, 20208, 20280, 21892, 23712, 23997, 25260, 25688, 27040, 27365, 29640, 31996, 32110, 32838, 33680, 38532, 39520, 39995, 40416, 40560, 43784, 47994, 48165, 50520, 51376, 54730, 59280, 63992, 64220, 65676, 67360, 71149, 77064, 79990, 81120, 82095, 87568, 95988, 96330, 101040, 102752, 103987, 109460, 118560, 119985, 127984, 128440, 131352, 142298, 154128, 159980, 164190, 175136, 191976, 192660, 202080, 207974, 213447, 218920, 239970, 255968, 256880, 262704, 284596, 308256, 311961, 319960, 328380, 355745, 383952, 385320, 415948, 426894, 437840, 479940, 513760, 519935, 525408, 569192, 623922, 639920, 656760, 711490, 767904, 770640, 831896, 853788, 875680, 959880, 1039870, 1067235, 1138384, 1247844, 1279840, 1313520, 1351831, 1422980, 1541280, 1559805, 1663792, 1707576, 1919760, 2079740, 2134470, 2276768, 2495688, 2627040, 2703662, 2845960, 3119610, 3327584, 3415152, 3839520, 4055493, 4159480, 4268940, 4991376, 5407324, 5691920, 6239220, 6759155, 6830304, 8110986, 8318960, 8537880, 9982752, 10814648, 11383840, 12478440, 13518310, 16221972, 16637920, 17075760, 20277465, 21629296, 24956880, 27036620, 32443944, 34151520, 40554930, 43258592, 49913760, 54073240, 64887888, 81109860, 108146480, 129775776, 162219720, 216292960, 324439440, 648878880]

約数ペア:

[(1, 648878880), (2, 324439440), (3, 216292960), (4, 162219720), (5, 129775776), (6, 108146480), (8, 81109860), (10, 64887888), (12, 54073240), (13, 49913760), (15, 43258592), (16, 40554930), (19, 34151520), (20, 32443944), (24, 27036620), (26, 24956880), (30, 21629296), (32, 20277465), (38, 17075760), (39, 16637920), (40, 16221972), (48, 13518310), (52, 12478440), (57, 11383840), (60, 10814648), (65, 9982752), (76, 8537880), (78, 8318960), (80, 8110986), (95, 6830304), (96, 6759155), (104, 6239220), (114, 5691920), (120, 5407324), (130, 4991376), (152, 4268940), (156, 4159480), (160, 4055493), (169, 3839520), (190, 3415152), (195, 3327584), (208, 3119610), (228, 2845960), (240, 2703662), (247, 2627040), (260, 2495688), (285, 2276768), (304, 2134470), (312, 2079740), (338, 1919760), (380, 1707576), (390, 1663792), (416, 1559805), (421, 1541280), (456, 1422980), (480, 1351831), (494, 1313520), (507, 1279840), (520, 1247844), (570, 1138384), (608, 1067235), (624, 1039870), (676, 959880), (741, 875680), (760, 853788), (780, 831896), (842, 770640), (845, 767904), (912, 711490), (988, 656760), (1014, 639920), (1040, 623922), (1140, 569192), (1235, 525408), (1248, 519935), (1263, 513760), (1352, 479940), (1482, 437840), (1520, 426894), (1560, 415948), (1684, 385320), (1690, 383952), (1824, 355745), (1976, 328380), (2028, 319960), (2080, 311961), (2105, 308256), (2280, 284596), (2470, 262704), (2526, 256880), (2535, 255968), (2704, 239970), (2964, 218920), (3040, 213447), (3120, 207974), (3211, 202080), (3368, 192660), (3380, 191976), (3705, 175136), (3952, 164190), (4056, 159980), (4210, 154128), (4560, 142298), (4940, 131352), (5052, 128440), (5070, 127984), (5408, 119985), (5473, 118560), (5928, 109460), (6240, 103987), (6315, 102752), (6422, 101040), (6736, 96330), (6760, 95988), (7410, 87568), (7904, 82095), (7999, 81120), (8112, 79990), (8420, 77064), (9120, 71149), (9633, 67360), (9880, 65676), (10104, 64220), (10140, 63992), (10946, 59280), (11856, 54730), (12630, 51376), (12844, 50520), (13472, 48165), (13520, 47994), (14820, 43784), (15998, 40560), (16055, 40416), (16224, 39995), (16419, 39520), (16840, 38532), (19266, 33680), (19760, 32838), (20208, 32110), (20280, 31996), (21892, 29640), (23712, 27365), (23997, 27040), (25260, 25688)]