20428470400

素因数分解:

$2^7\times 5^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1579}}^1$

素因数の和:1927

約数の個数: 192

約数和(自身を含む): 54555883200

約数和(自身を除く): 34127412800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 260, 311, 320, 325, 400, 416, 520, 622, 640, 650, 800, 832, 1040, 1244, 1300, 1555, 1579, 1600, 1664, 2080, 2488, 2600, 3110, 3158, 3200, 4043, 4160, 4976, 5200, 6220, 6316, 7775, 7895, 8086, 8320, 9952, 10400, 12440, 12632, 15550, 15790, 16172, 19904, 20215, 20527, 20800, 24880, 25264, 31100, 31580, 32344, 39475, 39808, 40430, 41054, 41600, 49760, 50528, 62200, 63160, 64688, 78950, 80860, 82108, 99520, 101056, 101075, 102635, 124400, 126320, 129376, 157900, 161720, 164216, 199040, 202112, 202150, 205270, 248800, 252640, 258752, 315800, 323440, 328432, 404300, 410540, 491069, 497600, 505280, 513175, 517504, 631600, 646880, 656864, 808600, 821080, 982138, 995200, 1010560, 1026350, 1263200, 1293760, 1313728, 1617200, 1642160, 1964276, 2052700, 2455345, 2526400, 2587520, 2627456, 3234400, 3284320, 3928552, 4105400, 4910690, 5052800, 6383897, 6468800, 6568640, 7857104, 8210800, 9821380, 12276725, 12767794, 12937600, 13137280, 15714208, 16421600, 19642760, 24553450, 25535588, 31428416, 31919485, 32843200, 39285520, 49106900, 51071176, 62856832, 63838970, 65686400, 78571040, 98213800, 102142352, 127677940, 157142080, 159597425, 196427600, 204284704, 255355880, 314284160, 319194850, 392855200, 408569408, 510711760, 638389700, 785710400, 817138816, 1021423520, 1276779400, 1571420800, 2042847040, 2553558800, 4085694080, 5107117600, 10214235200, 20428470400]

約数ペア:

[(1, 20428470400), (2, 10214235200), (4, 5107117600), (5, 4085694080), (8, 2553558800), (10, 2042847040), (13, 1571420800), (16, 1276779400), (20, 1021423520), (25, 817138816), (26, 785710400), (32, 638389700), (40, 510711760), (50, 408569408), (52, 392855200), (64, 319194850), (65, 314284160), (80, 255355880), (100, 204284704), (104, 196427600), (128, 159597425), (130, 157142080), (160, 127677940), (200, 102142352), (208, 98213800), (260, 78571040), (311, 65686400), (320, 63838970), (325, 62856832), (400, 51071176), (416, 49106900), (520, 39285520), (622, 32843200), (640, 31919485), (650, 31428416), (800, 25535588), (832, 24553450), (1040, 19642760), (1244, 16421600), (1300, 15714208), (1555, 13137280), (1579, 12937600), (1600, 12767794), (1664, 12276725), (2080, 9821380), (2488, 8210800), (2600, 7857104), (3110, 6568640), (3158, 6468800), (3200, 6383897), (4043, 5052800), (4160, 4910690), (4976, 4105400), (5200, 3928552), (6220, 3284320), (6316, 3234400), (7775, 2627456), (7895, 2587520), (8086, 2526400), (8320, 2455345), (9952, 2052700), (10400, 1964276), (12440, 1642160), (12632, 1617200), (15550, 1313728), (15790, 1293760), (16172, 1263200), (19904, 1026350), (20215, 1010560), (20527, 995200), (20800, 982138), (24880, 821080), (25264, 808600), (31100, 656864), (31580, 646880), (32344, 631600), (39475, 517504), (39808, 513175), (40430, 505280), (41054, 497600), (41600, 491069), (49760, 410540), (50528, 404300), (62200, 328432), (63160, 323440), (64688, 315800), (78950, 258752), (80860, 252640), (82108, 248800), (99520, 205270), (101056, 202150), (101075, 202112), (102635, 199040), (124400, 164216), (126320, 161720), (129376, 157900)]