640590768

素因数分解:

$2^4\times 3^5\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:194

約数の個数: 240

約数和(自身を含む): 1967297696

約数和(自身を除く): 1326706928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 37, 48, 54, 61, 72, 73, 74, 81, 108, 111, 122, 144, 146, 148, 162, 183, 216, 219, 222, 243, 244, 292, 296, 324, 333, 366, 432, 438, 444, 486, 488, 549, 584, 592, 648, 657, 666, 732, 876, 888, 972, 976, 999, 1098, 1168, 1296, 1314, 1332, 1464, 1647, 1752, 1776, 1944, 1971, 1998, 2196, 2257, 2628, 2664, 2701, 2928, 2997, 3294, 3504, 3888, 3942, 3996, 4392, 4453, 4514, 4941, 5256, 5328, 5402, 5913, 5994, 6588, 6771, 7884, 7992, 8103, 8784, 8906, 8991, 9028, 9882, 10512, 10804, 11826, 11988, 13176, 13359, 13542, 14823, 15768, 15984, 16206, 17739, 17812, 17982, 18056, 19764, 20313, 21608, 23652, 23976, 24309, 26352, 26718, 27084, 29646, 31536, 32412, 35478, 35624, 35964, 36112, 39528, 40077, 40626, 43216, 47304, 47952, 48618, 53436, 54168, 59292, 60939, 64824, 70956, 71248, 71928, 72927, 79056, 80154, 81252, 94608, 97236, 106872, 108336, 118584, 120231, 121878, 129648, 141912, 143856, 145854, 160308, 162504, 164761, 182817, 194472, 213744, 218781, 237168, 240462, 243756, 283824, 291708, 320616, 325008, 329522, 360693, 365634, 388944, 437562, 480924, 487512, 494283, 548451, 583416, 641232, 656343, 659044, 721386, 731268, 875124, 961848, 975024, 988566, 1082079, 1096902, 1166832, 1312686, 1318088, 1442772, 1462536, 1482849, 1750248, 1923696, 1977132, 2164158, 2193804, 2625372, 2636176, 2885544, 2925072, 2965698, 3500496, 3954264, 4328316, 4387608, 4448547, 5250744, 5771088, 5931396, 7908528, 8656632, 8775216, 8897094, 10501488, 11862792, 13345641, 17313264, 17794188, 23725584, 26691282, 35588376, 40036923, 53382564, 71176752, 80073846, 106765128, 160147692, 213530256, 320295384, 640590768]

約数ペア:

[(1, 640590768), (2, 320295384), (3, 213530256), (4, 160147692), (6, 106765128), (8, 80073846), (9, 71176752), (12, 53382564), (16, 40036923), (18, 35588376), (24, 26691282), (27, 23725584), (36, 17794188), (37, 17313264), (48, 13345641), (54, 11862792), (61, 10501488), (72, 8897094), (73, 8775216), (74, 8656632), (81, 7908528), (108, 5931396), (111, 5771088), (122, 5250744), (144, 4448547), (146, 4387608), (148, 4328316), (162, 3954264), (183, 3500496), (216, 2965698), (219, 2925072), (222, 2885544), (243, 2636176), (244, 2625372), (292, 2193804), (296, 2164158), (324, 1977132), (333, 1923696), (366, 1750248), (432, 1482849), (438, 1462536), (444, 1442772), (486, 1318088), (488, 1312686), (549, 1166832), (584, 1096902), (592, 1082079), (648, 988566), (657, 975024), (666, 961848), (732, 875124), (876, 731268), (888, 721386), (972, 659044), (976, 656343), (999, 641232), (1098, 583416), (1168, 548451), (1296, 494283), (1314, 487512), (1332, 480924), (1464, 437562), (1647, 388944), (1752, 365634), (1776, 360693), (1944, 329522), (1971, 325008), (1998, 320616), (2196, 291708), (2257, 283824), (2628, 243756), (2664, 240462), (2701, 237168), (2928, 218781), (2997, 213744), (3294, 194472), (3504, 182817), (3888, 164761), (3942, 162504), (3996, 160308), (4392, 145854), (4453, 143856), (4514, 141912), (4941, 129648), (5256, 121878), (5328, 120231), (5402, 118584), (5913, 108336), (5994, 106872), (6588, 97236), (6771, 94608), (7884, 81252), (7992, 80154), (8103, 79056), (8784, 72927), (8906, 71928), (8991, 71248), (9028, 70956), (9882, 64824), (10512, 60939), (10804, 59292), (11826, 54168), (11988, 53436), (13176, 48618), (13359, 47952), (13542, 47304), (14823, 43216), (15768, 40626), (15984, 40077), (16206, 39528), (17739, 36112), (17812, 35964), (17982, 35624), (18056, 35478), (19764, 32412), (20313, 31536), (21608, 29646), (23652, 27084), (23976, 26718), (24309, 26352)]