20646005760

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{49783}}^1$

素因数の和:49820

約数の個数: 220

約数和(自身を含む): 73985097648

約数和(自身を除く): 53339091888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 512, 540, 576, 640, 648, 720, 768, 810, 864, 960, 1024, 1080, 1152, 1280, 1296, 1440, 1536, 1620, 1728, 1920, 2160, 2304, 2560, 2592, 2880, 3072, 3240, 3456, 3840, 4320, 4608, 5120, 5184, 5760, 6480, 6912, 7680, 8640, 9216, 10368, 11520, 12960, 13824, 15360, 17280, 20736, 23040, 25920, 27648, 34560, 41472, 46080, 49783, 51840, 69120, 82944, 99566, 103680, 138240, 149349, 199132, 207360, 248915, 298698, 398264, 414720, 448047, 497830, 597396, 746745, 796528, 896094, 995660, 1194792, 1344141, 1493490, 1593056, 1792188, 1991320, 2240235, 2389584, 2688282, 2986980, 3186112, 3584376, 3982640, 4032423, 4480470, 4779168, 5376564, 5973960, 6372224, 6720705, 7168752, 7965280, 8064846, 8960940, 9558336, 10753128, 11947920, 12744448, 13441410, 14337504, 15930560, 16129692, 17921880, 19116672, 20162115, 21506256, 23895840, 25488896, 26882820, 28675008, 31861120, 32259384, 35843760, 38233344, 40324230, 43012512, 47791680, 50977792, 53765640, 57350016, 63722240, 64518768, 71687520, 76466688, 80648460, 86025024, 95583360, 107531280, 114700032, 127444480, 129037536, 143375040, 152933376, 161296920, 172050048, 191166720, 215062560, 229400064, 254888960, 258075072, 286750080, 322593840, 344100096, 382333440, 430125120, 458800128, 516150144, 573500160, 645187680, 688200192, 764666880, 860250240, 1032300288, 1147000320, 1290375360, 1376400384, 1720500480, 2064600576, 2294000640, 2580750720, 3441000960, 4129201152, 5161501440, 6882001920, 10323002880, 20646005760]

約数ペア:

[(1, 20646005760), (2, 10323002880), (3, 6882001920), (4, 5161501440), (5, 4129201152), (6, 3441000960), (8, 2580750720), (9, 2294000640), (10, 2064600576), (12, 1720500480), (15, 1376400384), (16, 1290375360), (18, 1147000320), (20, 1032300288), (24, 860250240), (27, 764666880), (30, 688200192), (32, 645187680), (36, 573500160), (40, 516150144), (45, 458800128), (48, 430125120), (54, 382333440), (60, 344100096), (64, 322593840), (72, 286750080), (80, 258075072), (81, 254888960), (90, 229400064), (96, 215062560), (108, 191166720), (120, 172050048), (128, 161296920), (135, 152933376), (144, 143375040), (160, 129037536), (162, 127444480), (180, 114700032), (192, 107531280), (216, 95583360), (240, 86025024), (256, 80648460), (270, 76466688), (288, 71687520), (320, 64518768), (324, 63722240), (360, 57350016), (384, 53765640), (405, 50977792), (432, 47791680), (480, 43012512), (512, 40324230), (540, 38233344), (576, 35843760), (640, 32259384), (648, 31861120), (720, 28675008), (768, 26882820), (810, 25488896), (864, 23895840), (960, 21506256), (1024, 20162115), (1080, 19116672), (1152, 17921880), (1280, 16129692), (1296, 15930560), (1440, 14337504), (1536, 13441410), (1620, 12744448), (1728, 11947920), (1920, 10753128), (2160, 9558336), (2304, 8960940), (2560, 8064846), (2592, 7965280), (2880, 7168752), (3072, 6720705), (3240, 6372224), (3456, 5973960), (3840, 5376564), (4320, 4779168), (4608, 4480470), (5120, 4032423), (5184, 3982640), (5760, 3584376), (6480, 3186112), (6912, 2986980), (7680, 2688282), (8640, 2389584), (9216, 2240235), (10368, 1991320), (11520, 1792188), (12960, 1593056), (13824, 1493490), (15360, 1344141), (17280, 1194792), (20736, 995660), (23040, 896094), (25920, 796528), (27648, 746745), (34560, 597396), (41472, 497830), (46080, 448047), (49783, 414720), (51840, 398264), (69120, 298698), (82944, 248915), (99566, 207360), (103680, 199132), (138240, 149349)]