20577217535

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{661}}^1\times {\mathrm{2083}}^1$

素因数の和:2824

約数の個数: 48

約数和(自身を含む): 29253208032

約数和(自身を除く): 8675990497

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 661, 2083, 2135, 2989, 3305, 4627, 10415, 14581, 14945, 23135, 32389, 40321, 72905, 102067, 127063, 161945, 201605, 282247, 510335, 635315, 889441, 1376863, 1411235, 1975729, 4447205, 6226087, 6884315, 9638041, 9878645, 31130435, 48190205, 67466287, 83988643, 337331435, 419943215, 587920501, 2939602505, 4115443507, 20577217535]

約数ペア:

[(1, 20577217535), (5, 4115443507), (7, 2939602505), (35, 587920501), (49, 419943215), (61, 337331435), (245, 83988643), (305, 67466287), (427, 48190205), (661, 31130435), (2083, 9878645), (2135, 9638041), (2989, 6884315), (3305, 6226087), (4627, 4447205), (10415, 1975729), (14581, 1411235), (14945, 1376863), (23135, 889441), (32389, 635315), (40321, 510335), (72905, 282247), (102067, 201605), (127063, 161945)]