19520690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{278867}}^1$

素因数の和:278881

約数の個数: 16

約数和(自身を含む): 40156992

約数和(自身を除く): 20636302

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 278867, 557734, 1394335, 1952069, 2788670, 3904138, 9760345, 19520690]

約数ペア:

[(1, 19520690), (2, 9760345), (5, 3904138), (7, 2788670), (10, 1952069), (14, 1394335), (35, 557734), (70, 278867)]