261766128

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 180

約数和(自身を含む): 778017912

約数和(自身を除く): 516251784

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 39, 46, 48, 52, 61, 69, 78, 92, 104, 122, 138, 156, 169, 183, 184, 208, 244, 276, 299, 312, 338, 366, 368, 488, 507, 529, 552, 598, 624, 676, 732, 793, 897, 976, 1014, 1058, 1104, 1196, 1352, 1403, 1464, 1586, 1587, 1794, 2028, 2116, 2379, 2392, 2704, 2806, 2928, 3172, 3174, 3588, 3887, 4056, 4209, 4232, 4758, 4784, 5612, 6344, 6348, 6877, 7176, 7774, 8112, 8418, 8464, 9516, 10309, 11224, 11661, 12688, 12696, 13754, 14352, 15548, 16836, 18239, 19032, 20618, 20631, 22448, 23322, 25392, 27508, 30927, 31096, 32269, 33672, 36478, 38064, 41236, 41262, 46644, 54717, 55016, 61854, 62192, 64538, 67344, 72956, 82472, 82524, 89401, 93288, 96807, 109434, 110032, 123708, 129076, 145912, 164944, 165048, 178802, 186576, 193614, 218868, 237107, 247416, 258152, 268203, 291824, 330096, 357604, 387228, 419497, 437736, 474214, 494832, 516304, 536406, 711321, 715208, 774456, 838994, 875472, 948428, 1072812, 1258491, 1422642, 1430416, 1548912, 1677988, 1896856, 2145624, 2516982, 2845284, 3355976, 3793712, 4291248, 5033964, 5453461, 5690568, 6711952, 10067928, 10906922, 11381136, 16360383, 20135856, 21813844, 32720766, 43627688, 65441532, 87255376, 130883064, 261766128]

約数ペア:

[(1, 261766128), (2, 130883064), (3, 87255376), (4, 65441532), (6, 43627688), (8, 32720766), (12, 21813844), (13, 20135856), (16, 16360383), (23, 11381136), (24, 10906922), (26, 10067928), (39, 6711952), (46, 5690568), (48, 5453461), (52, 5033964), (61, 4291248), (69, 3793712), (78, 3355976), (92, 2845284), (104, 2516982), (122, 2145624), (138, 1896856), (156, 1677988), (169, 1548912), (183, 1430416), (184, 1422642), (208, 1258491), (244, 1072812), (276, 948428), (299, 875472), (312, 838994), (338, 774456), (366, 715208), (368, 711321), (488, 536406), (507, 516304), (529, 494832), (552, 474214), (598, 437736), (624, 419497), (676, 387228), (732, 357604), (793, 330096), (897, 291824), (976, 268203), (1014, 258152), (1058, 247416), (1104, 237107), (1196, 218868), (1352, 193614), (1403, 186576), (1464, 178802), (1586, 165048), (1587, 164944), (1794, 145912), (2028, 129076), (2116, 123708), (2379, 110032), (2392, 109434), (2704, 96807), (2806, 93288), (2928, 89401), (3172, 82524), (3174, 82472), (3588, 72956), (3887, 67344), (4056, 64538), (4209, 62192), (4232, 61854), (4758, 55016), (4784, 54717), (5612, 46644), (6344, 41262), (6348, 41236), (6877, 38064), (7176, 36478), (7774, 33672), (8112, 32269), (8418, 31096), (8464, 30927), (9516, 27508), (10309, 25392), (11224, 23322), (11661, 22448), (12688, 20631), (12696, 20618), (13754, 19032), (14352, 18239), (15548, 16836)]