20779456

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{7919}}^1$

素因数の和:7972

約数の個数: 28

約数和(自身を含む): 42245280

約数和(自身を除く): 21465824

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 164, 328, 656, 1312, 2624, 7919, 15838, 31676, 63352, 126704, 253408, 324679, 506816, 649358, 1298716, 2597432, 5194864, 10389728, 20779456]

約数ペア:

[(1, 20779456), (2, 10389728), (4, 5194864), (8, 2597432), (16, 1298716), (32, 649358), (41, 506816), (64, 324679), (82, 253408), (164, 126704), (328, 63352), (656, 31676), (1312, 15838), (2624, 7919)]