78378220

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{12601}}^1$

素因数の和:12921

約数の個数: 24

約数和(自身を含む): 165136608

約数和(自身を除く): 86758388

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 12601, 25202, 50404, 63005, 126010, 252020, 3918911, 7837822, 15675644, 19594555, 39189110, 78378220]

約数ペア:

[(1, 78378220), (2, 39189110), (4, 19594555), (5, 15675644), (10, 7837822), (20, 3918911), (311, 252020), (622, 126010), (1244, 63005), (1555, 50404), (3110, 25202), (6220, 12601)]