20172215552

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{1021}}^1\times {\mathrm{1087}}^1$

素因数の和:2195

約数の個数: 72

約数和(自身を含む): 40910349312

約数和(自身を除く): 20738133760

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1021, 1087, 1136, 2042, 2174, 2272, 4084, 4348, 4544, 8168, 8696, 9088, 16336, 17392, 18176, 32672, 34784, 65344, 69568, 72491, 77177, 130688, 139136, 144982, 154354, 261376, 278272, 289964, 308708, 579928, 617416, 1109827, 1159856, 1234832, 2219654, 2319712, 2469664, 4439308, 4639424, 4939328, 8878616, 9278848, 9878656, 17757232, 18557696, 19757312, 35514464, 71028928, 78797717, 142057856, 157595434, 284115712, 315190868, 630381736, 1260763472, 2521526944, 5043053888, 10086107776, 20172215552]

約数ペア:

[(1, 20172215552), (2, 10086107776), (4, 5043053888), (8, 2521526944), (16, 1260763472), (32, 630381736), (64, 315190868), (71, 284115712), (128, 157595434), (142, 142057856), (256, 78797717), (284, 71028928), (568, 35514464), (1021, 19757312), (1087, 18557696), (1136, 17757232), (2042, 9878656), (2174, 9278848), (2272, 8878616), (4084, 4939328), (4348, 4639424), (4544, 4439308), (8168, 2469664), (8696, 2319712), (9088, 2219654), (16336, 1234832), (17392, 1159856), (18176, 1109827), (32672, 617416), (34784, 579928), (65344, 308708), (69568, 289964), (72491, 278272), (77177, 261376), (130688, 154354), (139136, 144982)]