19778528

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:400

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 31024672

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 32, 44, 46, 56, 77, 88, 92, 112, 154, 161, 176, 184, 224, 253, 308, 322, 349, 352, 368, 506, 616, 644, 698, 736, 1012, 1232, 1288, 1396, 1771, 2024, 2443, 2464, 2576, 2792, 3542, 3839, 4048, 4886, 5152, 5584, 7084, 7678, 8027, 8096, 9772, 11168, 14168, 15356, 16054, 19544, 26873, 28336, 30712, 32108, 39088, 53746, 56189, 56672, 61424, 64216, 78176, 88297, 107492, 112378, 122848, 128432, 176594, 214984, 224756, 256864, 353188, 429968, 449512, 618079, 706376, 859936, 899024, 1236158, 1412752, 1798048, 2472316, 2825504, 4944632, 9889264, 19778528]

約数ペア:

[(1, 19778528), (2, 9889264), (4, 4944632), (7, 2825504), (8, 2472316), (11, 1798048), (14, 1412752), (16, 1236158), (22, 899024), (23, 859936), (28, 706376), (32, 618079), (44, 449512), (46, 429968), (56, 353188), (77, 256864), (88, 224756), (92, 214984), (112, 176594), (154, 128432), (161, 122848), (176, 112378), (184, 107492), (224, 88297), (253, 78176), (308, 64216), (322, 61424), (349, 56672), (352, 56189), (368, 53746), (506, 39088), (616, 32108), (644, 30712), (698, 28336), (736, 26873), (1012, 19544), (1232, 16054), (1288, 15356), (1396, 14168), (1771, 11168), (2024, 9772), (2443, 8096), (2464, 8027), (2576, 7678), (2792, 7084), (3542, 5584), (3839, 5152), (4048, 4886)]