20016128

素因数分解:

$2^{10}\times {\mathrm{11}}^1\times {\mathrm{1777}}^1$

素因数の和:1808

約数の個数: 44

約数和(自身を含む): 43674792

約数和(自身を除く): 23658664

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1024, 1408, 1777, 2816, 3554, 5632, 7108, 11264, 14216, 19547, 28432, 39094, 56864, 78188, 113728, 156376, 227456, 312752, 454912, 625504, 909824, 1251008, 1819648, 2502016, 5004032, 10008064, 20016128]

約数ペア:

[(1, 20016128), (2, 10008064), (4, 5004032), (8, 2502016), (11, 1819648), (16, 1251008), (22, 909824), (32, 625504), (44, 454912), (64, 312752), (88, 227456), (128, 156376), (176, 113728), (256, 78188), (352, 56864), (512, 39094), (704, 28432), (1024, 19547), (1408, 14216), (1777, 11264), (2816, 7108), (3554, 5632)]