31493896

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^2$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 69215040

約数和(自身を除く): 37721144

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 89, 142, 178, 284, 356, 497, 568, 623, 712, 994, 1246, 1988, 2492, 3976, 4984, 6319, 7921, 12638, 15842, 25276, 31684, 44233, 50552, 55447, 63368, 88466, 110894, 176932, 221788, 353864, 443576, 562391, 1124782, 2249564, 3936737, 4499128, 7873474, 15746948, 31493896]

約数ペア:

[(1, 31493896), (2, 15746948), (4, 7873474), (7, 4499128), (8, 3936737), (14, 2249564), (28, 1124782), (56, 562391), (71, 443576), (89, 353864), (142, 221788), (178, 176932), (284, 110894), (356, 88466), (497, 63368), (568, 55447), (623, 50552), (712, 44233), (994, 31684), (1246, 25276), (1988, 15842), (2492, 12638), (3976, 7921), (4984, 6319)]