9980494990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52528921}}^1$

素因数の和:52528947

約数の個数: 16

約数和(自身を含む): 18910411920

約数和(自身を除く): 8929916930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 52528921, 105057842, 262644605, 525289210, 998049499, 1996098998, 4990247495, 9980494990]

約数ペア:

[(1, 9980494990), (2, 4990247495), (5, 1996098998), (10, 998049499), (19, 525289210), (38, 262644605), (95, 105057842), (190, 52528921)]