638700480

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20161}}^1$

素因数の和:20195

約数の個数: 168

約数和(自身を含む): 2396697264

約数和(自身を除く): 1757996784

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 352, 360, 396, 440, 480, 495, 528, 576, 660, 704, 720, 792, 880, 960, 990, 1056, 1320, 1440, 1584, 1760, 1980, 2112, 2640, 2880, 3168, 3520, 3960, 5280, 6336, 7920, 10560, 15840, 20161, 31680, 40322, 60483, 80644, 100805, 120966, 161288, 181449, 201610, 221771, 241932, 302415, 322576, 362898, 403220, 443542, 483864, 604830, 645152, 665313, 725796, 806440, 887084, 907245, 967728, 1108855, 1209660, 1290304, 1330626, 1451592, 1612880, 1774168, 1814490, 1935456, 1995939, 2217710, 2419320, 2661252, 2903184, 3225760, 3326565, 3548336, 3628980, 3870912, 3991878, 4435420, 4838640, 5322504, 5806368, 6451520, 6653130, 7096672, 7257960, 7983756, 8870840, 9677280, 9979695, 10645008, 11612736, 13306260, 14193344, 14515920, 15967512, 17741680, 19354560, 19959390, 21290016, 26612520, 29031840, 31935024, 35483360, 39918780, 42580032, 53225040, 58063680, 63870048, 70966720, 79837560, 106450080, 127740096, 159675120, 212900160, 319350240, 638700480]

約数ペア:

[(1, 638700480), (2, 319350240), (3, 212900160), (4, 159675120), (5, 127740096), (6, 106450080), (8, 79837560), (9, 70966720), (10, 63870048), (11, 58063680), (12, 53225040), (15, 42580032), (16, 39918780), (18, 35483360), (20, 31935024), (22, 29031840), (24, 26612520), (30, 21290016), (32, 19959390), (33, 19354560), (36, 17741680), (40, 15967512), (44, 14515920), (45, 14193344), (48, 13306260), (55, 11612736), (60, 10645008), (64, 9979695), (66, 9677280), (72, 8870840), (80, 7983756), (88, 7257960), (90, 7096672), (96, 6653130), (99, 6451520), (110, 5806368), (120, 5322504), (132, 4838640), (144, 4435420), (160, 3991878), (165, 3870912), (176, 3628980), (180, 3548336), (192, 3326565), (198, 3225760), (220, 2903184), (240, 2661252), (264, 2419320), (288, 2217710), (320, 1995939), (330, 1935456), (352, 1814490), (360, 1774168), (396, 1612880), (440, 1451592), (480, 1330626), (495, 1290304), (528, 1209660), (576, 1108855), (660, 967728), (704, 907245), (720, 887084), (792, 806440), (880, 725796), (960, 665313), (990, 645152), (1056, 604830), (1320, 483864), (1440, 443542), (1584, 403220), (1760, 362898), (1980, 322576), (2112, 302415), (2640, 241932), (2880, 221771), (3168, 201610), (3520, 181449), (3960, 161288), (5280, 120966), (6336, 100805), (7920, 80644), (10560, 60483), (15840, 40322), (20161, 31680)]