12811980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{213533}}^1$

素因数の和:213545

約数の個数: 24

約数和(自身を含む): 35873712

約数和(自身を除く): 23061732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 213533, 427066, 640599, 854132, 1067665, 1281198, 2135330, 2562396, 3202995, 4270660, 6405990, 12811980]

約数ペア:

[(1, 12811980), (2, 6405990), (3, 4270660), (4, 3202995), (5, 2562396), (6, 2135330), (10, 1281198), (12, 1067665), (15, 854132), (20, 640599), (30, 427066), (60, 213533)]