20199494380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77690363}}^1$

素因数の和:77690385

約数の個数: 24

約数和(自身を含む): 45681934032

約数和(自身を除く): 25482439652

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77690363, 155380726, 310761452, 388451815, 776903630, 1009974719, 1553807260, 2019949438, 4039898876, 5049873595, 10099747190, 20199494380]

約数ペア:

[(1, 20199494380), (2, 10099747190), (4, 5049873595), (5, 4039898876), (10, 2019949438), (13, 1553807260), (20, 1009974719), (26, 776903630), (52, 388451815), (65, 310761452), (130, 155380726), (260, 77690363)]