19312540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74279}}^1$

素因数の和:74301

約数の個数: 24

約数和(自身を含む): 43676640

約数和(自身を除く): 24364100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74279, 148558, 297116, 371395, 742790, 965627, 1485580, 1931254, 3862508, 4828135, 9656270, 19312540]

約数ペア:

[(1, 19312540), (2, 9656270), (4, 4828135), (5, 3862508), (10, 1931254), (13, 1485580), (20, 965627), (26, 742790), (52, 371395), (65, 297116), (130, 148558), (260, 74279)]