20131311185

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{647}}^1\times {\mathrm{1051}}^1$

素因数の和:1925

約数の個数: 32

約数和(自身を含む): 25130041344

約数和(自身を除く): 4998730159

約数列:

[1, 5, 31, 155, 191, 647, 955, 1051, 3235, 5255, 5921, 20057, 29605, 32581, 100285, 123577, 162905, 200741, 617885, 679997, 1003705, 3399985, 3830887, 6222971, 19154435, 21079907, 31114855, 105399535, 129879427, 649397135, 4026262237, 20131311185]

約数ペア:

[(1, 20131311185), (5, 4026262237), (31, 649397135), (155, 129879427), (191, 105399535), (647, 31114855), (955, 21079907), (1051, 19154435), (3235, 6222971), (5255, 3830887), (5921, 3399985), (20057, 1003705), (29605, 679997), (32581, 617885), (100285, 200741), (123577, 162905)]