19717260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328621}}^1$

素因数の和:328633

約数の個数: 24

約数和(自身を含む): 55208496

約数和(自身を除く): 35491236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328621, 657242, 985863, 1314484, 1643105, 1971726, 3286210, 3943452, 4929315, 6572420, 9858630, 19717260]

約数ペア:

[(1, 19717260), (2, 9858630), (3, 6572420), (4, 4929315), (5, 3943452), (6, 3286210), (10, 1971726), (12, 1643105), (15, 1314484), (20, 985863), (30, 657242), (60, 328621)]