20812792

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 55157760

約数和(自身を除く): 34344968

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 23, 26, 28, 44, 46, 52, 56, 77, 88, 91, 92, 104, 113, 143, 154, 161, 182, 184, 226, 253, 286, 299, 308, 322, 364, 452, 506, 572, 598, 616, 644, 728, 791, 904, 1001, 1012, 1144, 1196, 1243, 1288, 1469, 1582, 1771, 2002, 2024, 2093, 2392, 2486, 2599, 2938, 3164, 3289, 3542, 4004, 4186, 4972, 5198, 5876, 6328, 6578, 7084, 8008, 8372, 8701, 9944, 10283, 10396, 11752, 13156, 14168, 16159, 16744, 17402, 18193, 20566, 20792, 23023, 26312, 28589, 32318, 33787, 34804, 36386, 41132, 46046, 57178, 64636, 67574, 69608, 72772, 82264, 92092, 113113, 114356, 129272, 135148, 145544, 184184, 200123, 226226, 228712, 236509, 270296, 371657, 400246, 452452, 473018, 743314, 800492, 904904, 946036, 1486628, 1600984, 1892072, 2601599, 2973256, 5203198, 10406396, 20812792]

約数ペア:

[(1, 20812792), (2, 10406396), (4, 5203198), (7, 2973256), (8, 2601599), (11, 1892072), (13, 1600984), (14, 1486628), (22, 946036), (23, 904904), (26, 800492), (28, 743314), (44, 473018), (46, 452452), (52, 400246), (56, 371657), (77, 270296), (88, 236509), (91, 228712), (92, 226226), (104, 200123), (113, 184184), (143, 145544), (154, 135148), (161, 129272), (182, 114356), (184, 113113), (226, 92092), (253, 82264), (286, 72772), (299, 69608), (308, 67574), (322, 64636), (364, 57178), (452, 46046), (506, 41132), (572, 36386), (598, 34804), (616, 33787), (644, 32318), (728, 28589), (791, 26312), (904, 23023), (1001, 20792), (1012, 20566), (1144, 18193), (1196, 17402), (1243, 16744), (1288, 16159), (1469, 14168), (1582, 13156), (1771, 11752), (2002, 10396), (2024, 10283), (2093, 9944), (2392, 8701), (2486, 8372), (2599, 8008), (2938, 7084), (3164, 6578), (3289, 6328), (3542, 5876), (4004, 5198), (4186, 4972)]