20888608

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{337}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 44717400

約数和(自身を除く): 23828792

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 149, 208, 298, 337, 416, 596, 674, 1192, 1348, 1937, 2384, 2696, 3874, 4381, 4768, 5392, 7748, 8762, 10784, 15496, 17524, 30992, 35048, 50213, 61984, 70096, 100426, 140192, 200852, 401704, 652769, 803408, 1305538, 1606816, 2611076, 5222152, 10444304, 20888608]

約数ペア:

[(1, 20888608), (2, 10444304), (4, 5222152), (8, 2611076), (13, 1606816), (16, 1305538), (26, 803408), (32, 652769), (52, 401704), (104, 200852), (149, 140192), (208, 100426), (298, 70096), (337, 61984), (416, 50213), (596, 35048), (674, 30992), (1192, 17524), (1348, 15496), (1937, 10784), (2384, 8762), (2696, 7748), (3874, 5392), (4381, 4768)]