19839331390

素因数分解:

$2^1\times 5^1\times {\mathrm{3989}}^1\times {\mathrm{497351}}^1$

素因数の和:501347

約数の個数: 16

約数和(自身を含む): 35719820640

約数和(自身を除く): 15880489250

約数列:

[1, 2, 5, 10, 3989, 7978, 19945, 39890, 497351, 994702, 2486755, 4973510, 1983933139, 3967866278, 9919665695, 19839331390]

約数ペア:

[(1, 19839331390), (2, 9919665695), (5, 3967866278), (10, 1983933139), (3989, 4973510), (7978, 2486755), (19945, 994702), (39890, 497351)]