12318220

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3923}}^1$

素因数の和:4089

約数の個数: 24

約数和(自身を含む): 26039664

約数和(自身を除く): 13721444

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 3923, 7846, 15692, 19615, 39230, 78460, 615911, 1231822, 2463644, 3079555, 6159110, 12318220]

約数ペア:

[(1, 12318220), (2, 6159110), (4, 3079555), (5, 2463644), (10, 1231822), (20, 615911), (157, 78460), (314, 39230), (628, 19615), (785, 15692), (1570, 7846), (3140, 3923)]