20400542345

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1\times {\mathrm{340321}}^1$

素因数の和:340976

約数の個数: 16

約数和(自身を含む): 25810020480

約数和(自身を除く): 5409478135

約数列:

[1, 5, 19, 95, 631, 3155, 11989, 59945, 340321, 1701605, 6466099, 32330495, 214742551, 1073712755, 4080108469, 20400542345]

約数ペア:

[(1, 20400542345), (5, 4080108469), (19, 1073712755), (95, 214742551), (631, 32330495), (3155, 6466099), (11989, 1701605), (59945, 340321)]