208069890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{990809}}^1$

素因数の和:990826

約数の個数: 32

約数和(自身を含む): 570706560

約数和(自身を除く): 362636670

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 990809, 1981618, 2972427, 4954045, 5944854, 6935663, 9908090, 13871326, 14862135, 20806989, 29724270, 34678315, 41613978, 69356630, 104034945, 208069890]

約数ペア:

[(1, 208069890), (2, 104034945), (3, 69356630), (5, 41613978), (6, 34678315), (7, 29724270), (10, 20806989), (14, 14862135), (15, 13871326), (21, 9908090), (30, 6935663), (35, 5944854), (42, 4954045), (70, 2972427), (105, 1981618), (210, 990809)]