261408960

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{653}}^1$

素因数の和:815

約数の個数: 168

約数和(自身を含む): 906993360

約数和(自身を除く): 645584400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 139, 144, 160, 180, 192, 240, 278, 288, 320, 360, 417, 480, 556, 576, 653, 695, 720, 834, 960, 1112, 1251, 1306, 1390, 1440, 1668, 1959, 2085, 2224, 2502, 2612, 2780, 2880, 3265, 3336, 3918, 4170, 4448, 5004, 5224, 5560, 5877, 6255, 6530, 6672, 7836, 8340, 8896, 9795, 10008, 10448, 11120, 11754, 12510, 13060, 13344, 15672, 16680, 19590, 20016, 20896, 22240, 23508, 25020, 26120, 26688, 29385, 31344, 33360, 39180, 40032, 41792, 44480, 47016, 50040, 52240, 58770, 62688, 66720, 78360, 80064, 90767, 94032, 100080, 104480, 117540, 125376, 133440, 156720, 181534, 188064, 200160, 208960, 235080, 272301, 313440, 363068, 376128, 400320, 453835, 470160, 544602, 626880, 726136, 816903, 907670, 940320, 1089204, 1361505, 1452272, 1633806, 1815340, 1880640, 2178408, 2723010, 2904544, 3267612, 3630680, 4084515, 4356816, 5446020, 5809088, 6535224, 7261360, 8169030, 8713632, 10892040, 13070448, 14522720, 16338060, 17427264, 21784080, 26140896, 29045440, 32676120, 43568160, 52281792, 65352240, 87136320, 130704480, 261408960]

約数ペア:

[(1, 261408960), (2, 130704480), (3, 87136320), (4, 65352240), (5, 52281792), (6, 43568160), (8, 32676120), (9, 29045440), (10, 26140896), (12, 21784080), (15, 17427264), (16, 16338060), (18, 14522720), (20, 13070448), (24, 10892040), (30, 8713632), (32, 8169030), (36, 7261360), (40, 6535224), (45, 5809088), (48, 5446020), (60, 4356816), (64, 4084515), (72, 3630680), (80, 3267612), (90, 2904544), (96, 2723010), (120, 2178408), (139, 1880640), (144, 1815340), (160, 1633806), (180, 1452272), (192, 1361505), (240, 1089204), (278, 940320), (288, 907670), (320, 816903), (360, 726136), (417, 626880), (480, 544602), (556, 470160), (576, 453835), (653, 400320), (695, 376128), (720, 363068), (834, 313440), (960, 272301), (1112, 235080), (1251, 208960), (1306, 200160), (1390, 188064), (1440, 181534), (1668, 156720), (1959, 133440), (2085, 125376), (2224, 117540), (2502, 104480), (2612, 100080), (2780, 94032), (2880, 90767), (3265, 80064), (3336, 78360), (3918, 66720), (4170, 62688), (4448, 58770), (5004, 52240), (5224, 50040), (5560, 47016), (5877, 44480), (6255, 41792), (6530, 40032), (6672, 39180), (7836, 33360), (8340, 31344), (8896, 29385), (9795, 26688), (10008, 26120), (10448, 25020), (11120, 23508), (11754, 22240), (12510, 20896), (13060, 20016), (13344, 19590), (15672, 16680)]