19706440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37897}}^1$

素因数の和:37921

約数の個数: 32

約数和(自身を含む): 47751480

約数和(自身を除く): 28045040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37897, 75794, 151588, 189485, 303176, 378970, 492661, 757940, 985322, 1515880, 1970644, 2463305, 3941288, 4926610, 9853220, 19706440]

約数ペア:

[(1, 19706440), (2, 9853220), (4, 4926610), (5, 3941288), (8, 2463305), (10, 1970644), (13, 1515880), (20, 985322), (26, 757940), (40, 492661), (52, 378970), (65, 303176), (104, 189485), (130, 151588), (260, 75794), (520, 37897)]