261257920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:519

約数の個数: 224

約数和(自身を含む): 811109376

約数和(自身を除く): 549851456

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 23, 28, 32, 35, 40, 44, 46, 55, 56, 64, 70, 77, 80, 88, 92, 110, 112, 115, 140, 154, 160, 161, 176, 184, 220, 224, 230, 253, 280, 308, 320, 322, 352, 368, 385, 440, 448, 460, 461, 506, 560, 616, 644, 704, 736, 770, 805, 880, 920, 922, 1012, 1120, 1232, 1265, 1288, 1472, 1540, 1610, 1760, 1771, 1840, 1844, 2024, 2240, 2305, 2464, 2530, 2576, 3080, 3220, 3227, 3520, 3542, 3680, 3688, 4048, 4610, 4928, 5060, 5071, 5152, 6160, 6440, 6454, 7084, 7360, 7376, 8096, 8855, 9220, 10120, 10142, 10304, 10603, 12320, 12880, 12908, 14168, 14752, 16135, 16192, 17710, 18440, 20240, 20284, 21206, 24640, 25355, 25760, 25816, 28336, 29504, 32270, 35420, 35497, 36880, 40480, 40568, 42412, 50710, 51520, 51632, 53015, 56672, 64540, 70840, 70994, 73760, 74221, 80960, 81136, 84824, 101420, 103264, 106030, 113344, 116633, 129080, 141680, 141988, 147520, 148442, 162272, 169648, 177485, 202840, 206528, 212060, 233266, 258160, 283360, 283976, 296884, 324544, 339296, 354970, 371105, 405680, 424120, 466532, 516320, 566720, 567952, 583165, 593768, 678592, 709940, 742210, 811360, 816431, 848240, 933064, 1032640, 1135904, 1166330, 1187536, 1419880, 1484420, 1622720, 1632862, 1696480, 1866128, 2271808, 2332660, 2375072, 2839760, 2968840, 3265724, 3392960, 3732256, 4082155, 4665320, 4750144, 5679520, 5937680, 6531448, 7464512, 8164310, 9330640, 11359040, 11875360, 13062896, 16328620, 18661280, 23750720, 26125792, 32657240, 37322560, 52251584, 65314480, 130628960, 261257920]

約数ペア:

[(1, 261257920), (2, 130628960), (4, 65314480), (5, 52251584), (7, 37322560), (8, 32657240), (10, 26125792), (11, 23750720), (14, 18661280), (16, 16328620), (20, 13062896), (22, 11875360), (23, 11359040), (28, 9330640), (32, 8164310), (35, 7464512), (40, 6531448), (44, 5937680), (46, 5679520), (55, 4750144), (56, 4665320), (64, 4082155), (70, 3732256), (77, 3392960), (80, 3265724), (88, 2968840), (92, 2839760), (110, 2375072), (112, 2332660), (115, 2271808), (140, 1866128), (154, 1696480), (160, 1632862), (161, 1622720), (176, 1484420), (184, 1419880), (220, 1187536), (224, 1166330), (230, 1135904), (253, 1032640), (280, 933064), (308, 848240), (320, 816431), (322, 811360), (352, 742210), (368, 709940), (385, 678592), (440, 593768), (448, 583165), (460, 567952), (461, 566720), (506, 516320), (560, 466532), (616, 424120), (644, 405680), (704, 371105), (736, 354970), (770, 339296), (805, 324544), (880, 296884), (920, 283976), (922, 283360), (1012, 258160), (1120, 233266), (1232, 212060), (1265, 206528), (1288, 202840), (1472, 177485), (1540, 169648), (1610, 162272), (1760, 148442), (1771, 147520), (1840, 141988), (1844, 141680), (2024, 129080), (2240, 116633), (2305, 113344), (2464, 106030), (2530, 103264), (2576, 101420), (3080, 84824), (3220, 81136), (3227, 80960), (3520, 74221), (3542, 73760), (3680, 70994), (3688, 70840), (4048, 64540), (4610, 56672), (4928, 53015), (5060, 51632), (5071, 51520), (5152, 50710), (6160, 42412), (6440, 40568), (6454, 40480), (7084, 36880), (7360, 35497), (7376, 35420), (8096, 32270), (8855, 29504), (9220, 28336), (10120, 25816), (10142, 25760), (10304, 25355), (10603, 24640), (12320, 21206), (12880, 20284), (12908, 20240), (14168, 18440), (14752, 17710), (16135, 16192)]