219305420

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{13933}}^1$

素因数の和:14729

約数の個数: 24

約数和(自身を含む): 461159664

約数和(自身を除く): 241854244

約数列:

[1, 2, 4, 5, 10, 20, 787, 1574, 3148, 3935, 7870, 13933, 15740, 27866, 55732, 69665, 139330, 278660, 10965271, 21930542, 43861084, 54826355, 109652710, 219305420]

約数ペア:

[(1, 219305420), (2, 109652710), (4, 54826355), (5, 43861084), (10, 21930542), (20, 10965271), (787, 278660), (1574, 139330), (3148, 69665), (3935, 55732), (7870, 27866), (13933, 15740)]