20688081792

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{21803}}^1$

素因数の和:22180

約数の個数: 128

約数和(自身を含む): 62983906560

約数和(自身を除く): 42295824768

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 336, 353, 384, 448, 672, 706, 896, 1059, 1344, 1412, 2118, 2471, 2688, 2824, 4236, 4942, 5648, 7413, 8472, 9884, 11296, 14826, 16944, 19768, 21803, 22592, 29652, 33888, 39536, 43606, 45184, 59304, 65409, 67776, 79072, 87212, 118608, 130818, 135552, 152621, 158144, 174424, 237216, 261636, 305242, 316288, 348848, 457863, 474432, 523272, 610484, 697696, 915726, 948864, 1046544, 1220968, 1395392, 1831452, 2093088, 2441936, 2790784, 3662904, 4186176, 4883872, 7325808, 7696459, 8372352, 9767744, 14651616, 15392918, 19535488, 23089377, 29303232, 30785836, 46178754, 53875213, 58606464, 61571672, 92357508, 107750426, 123143344, 161625639, 184715016, 215500852, 246286688, 323251278, 369430032, 431001704, 492573376, 646502556, 738860064, 862003408, 985146752, 1293005112, 1477720128, 1724006816, 2586010224, 2955440256, 3448013632, 5172020448, 6896027264, 10344040896, 20688081792]

約数ペア:

[(1, 20688081792), (2, 10344040896), (3, 6896027264), (4, 5172020448), (6, 3448013632), (7, 2955440256), (8, 2586010224), (12, 1724006816), (14, 1477720128), (16, 1293005112), (21, 985146752), (24, 862003408), (28, 738860064), (32, 646502556), (42, 492573376), (48, 431001704), (56, 369430032), (64, 323251278), (84, 246286688), (96, 215500852), (112, 184715016), (128, 161625639), (168, 123143344), (192, 107750426), (224, 92357508), (336, 61571672), (353, 58606464), (384, 53875213), (448, 46178754), (672, 30785836), (706, 29303232), (896, 23089377), (1059, 19535488), (1344, 15392918), (1412, 14651616), (2118, 9767744), (2471, 8372352), (2688, 7696459), (2824, 7325808), (4236, 4883872), (4942, 4186176), (5648, 3662904), (7413, 2790784), (8472, 2441936), (9884, 2093088), (11296, 1831452), (14826, 1395392), (16944, 1220968), (19768, 1046544), (21803, 948864), (22592, 915726), (29652, 697696), (33888, 610484), (39536, 523272), (43606, 474432), (45184, 457863), (59304, 348848), (65409, 316288), (67776, 305242), (79072, 261636), (87212, 237216), (118608, 174424), (130818, 158144), (135552, 152621)]