643456

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{457}}^1$

素因数の和:482

約数の個数: 32

約数和(自身を含む): 1401480

約数和(自身を除く): 758024

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 352, 457, 704, 914, 1408, 1828, 3656, 5027, 7312, 10054, 14624, 20108, 29248, 40216, 58496, 80432, 160864, 321728, 643456]

約数ペア:

[(1, 643456), (2, 321728), (4, 160864), (8, 80432), (11, 58496), (16, 40216), (22, 29248), (32, 20108), (44, 14624), (64, 10054), (88, 7312), (128, 5027), (176, 3656), (352, 1828), (457, 1408), (704, 914)]