646863840

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{21391}}^1$

素因数の和:21422

約数の個数: 192

約数和(自身を含む): 2587576320

約数和(自身を除く): 1940712480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 21391, 30240, 42782, 64173, 85564, 106955, 128346, 149737, 171128, 192519, 213910, 256692, 299474, 320865, 342256, 385038, 427820, 449211, 513384, 577557, 598948, 641730, 684512, 748685, 770076, 855640, 898422, 962595, 1026768, 1155114, 1197896, 1283460, 1347633, 1497370, 1540152, 1711280, 1796844, 1925190, 2053536, 2246055, 2310228, 2395792, 2566920, 2695266, 2887785, 2994740, 3080304, 3422560, 3593688, 3850380, 4042899, 4492110, 4620456, 4791584, 5133840, 5390532, 5775570, 5989480, 6160608, 6738165, 7187376, 7700760, 8085798, 8984220, 9240912, 10267680, 10781064, 11551140, 11978960, 13476330, 14374752, 15401520, 16171596, 17968440, 18481824, 20214495, 21562128, 23102280, 23957920, 26952660, 30803040, 32343192, 35936880, 40428990, 43124256, 46204560, 53905320, 64686384, 71873760, 80857980, 92409120, 107810640, 129372768, 161715960, 215621280, 323431920, 646863840]

約数ペア:

[(1, 646863840), (2, 323431920), (3, 215621280), (4, 161715960), (5, 129372768), (6, 107810640), (7, 92409120), (8, 80857980), (9, 71873760), (10, 64686384), (12, 53905320), (14, 46204560), (15, 43124256), (16, 40428990), (18, 35936880), (20, 32343192), (21, 30803040), (24, 26952660), (27, 23957920), (28, 23102280), (30, 21562128), (32, 20214495), (35, 18481824), (36, 17968440), (40, 16171596), (42, 15401520), (45, 14374752), (48, 13476330), (54, 11978960), (56, 11551140), (60, 10781064), (63, 10267680), (70, 9240912), (72, 8984220), (80, 8085798), (84, 7700760), (90, 7187376), (96, 6738165), (105, 6160608), (108, 5989480), (112, 5775570), (120, 5390532), (126, 5133840), (135, 4791584), (140, 4620456), (144, 4492110), (160, 4042899), (168, 3850380), (180, 3593688), (189, 3422560), (210, 3080304), (216, 2994740), (224, 2887785), (240, 2695266), (252, 2566920), (270, 2395792), (280, 2310228), (288, 2246055), (315, 2053536), (336, 1925190), (360, 1796844), (378, 1711280), (420, 1540152), (432, 1497370), (480, 1347633), (504, 1283460), (540, 1197896), (560, 1155114), (630, 1026768), (672, 962595), (720, 898422), (756, 855640), (840, 770076), (864, 748685), (945, 684512), (1008, 641730), (1080, 598948), (1120, 577557), (1260, 513384), (1440, 449211), (1512, 427820), (1680, 385038), (1890, 342256), (2016, 320865), (2160, 299474), (2520, 256692), (3024, 213910), (3360, 192519), (3780, 171128), (4320, 149737), (5040, 128346), (6048, 106955), (7560, 85564), (10080, 64173), (15120, 42782), (21391, 30240)]