20392544

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 42247296

約数和(自身を除く): 21854752

約数列:

[1, 2, 4, 8, 16, 31, 32, 61, 62, 122, 124, 244, 248, 337, 488, 496, 674, 976, 992, 1348, 1891, 1952, 2696, 3782, 5392, 7564, 10447, 10784, 15128, 20557, 20894, 30256, 41114, 41788, 60512, 82228, 83576, 164456, 167152, 328912, 334304, 637267, 657824, 1274534, 2549068, 5098136, 10196272, 20392544]

約数ペア:

[(1, 20392544), (2, 10196272), (4, 5098136), (8, 2549068), (16, 1274534), (31, 657824), (32, 637267), (61, 334304), (62, 328912), (122, 167152), (124, 164456), (244, 83576), (248, 82228), (337, 60512), (488, 41788), (496, 41114), (674, 30256), (976, 20894), (992, 20557), (1348, 15128), (1891, 10784), (1952, 10447), (2696, 7564), (3782, 5392)]