221797888

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{709}}^1$

素因数の和:787

約数の個数: 80

約数和(自身を含む): 488093760

約数和(自身を除く): 266295872

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 64, 94, 104, 128, 188, 208, 256, 376, 416, 512, 611, 709, 752, 832, 1222, 1418, 1504, 1664, 2444, 2836, 3008, 3328, 4888, 5672, 6016, 6656, 9217, 9776, 11344, 12032, 18434, 19552, 22688, 24064, 33323, 36868, 39104, 45376, 66646, 73736, 78208, 90752, 133292, 147472, 156416, 181504, 266584, 294944, 312832, 363008, 433199, 533168, 589888, 866398, 1066336, 1179776, 1732796, 2132672, 2359552, 3465592, 4265344, 4719104, 6931184, 8530688, 13862368, 17061376, 27724736, 55449472, 110898944, 221797888]

約数ペア:

[(1, 221797888), (2, 110898944), (4, 55449472), (8, 27724736), (13, 17061376), (16, 13862368), (26, 8530688), (32, 6931184), (47, 4719104), (52, 4265344), (64, 3465592), (94, 2359552), (104, 2132672), (128, 1732796), (188, 1179776), (208, 1066336), (256, 866398), (376, 589888), (416, 533168), (512, 433199), (611, 363008), (709, 312832), (752, 294944), (832, 266584), (1222, 181504), (1418, 156416), (1504, 147472), (1664, 133292), (2444, 90752), (2836, 78208), (3008, 73736), (3328, 66646), (4888, 45376), (5672, 39104), (6016, 36868), (6656, 33323), (9217, 24064), (9776, 22688), (11344, 19552), (12032, 18434)]