620791561

素因数分解:

${\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1\times {\mathrm{1553}}^1$

素因数の和:1980

約数の個数: 16

約数和(自身を含む): 678003984

約数和(自身を除く): 57212423

約数列:

[1, 13, 97, 317, 1261, 1553, 4121, 20189, 30749, 150641, 399737, 492301, 1958333, 6399913, 47753197, 620791561]

約数ペア:

[(1, 620791561), (13, 47753197), (97, 6399913), (317, 1958333), (1261, 492301), (1553, 399737), (4121, 150641), (20189, 30749)]