28982780

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{3301}}^1$

素因数の和:3749

約数の個数: 24

約数和(自身を含む): 61020960

約数和(自身を除く): 32038180

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 3301, 4390, 6602, 8780, 13204, 16505, 33010, 66020, 1449139, 2898278, 5796556, 7245695, 14491390, 28982780]

約数ペア:

[(1, 28982780), (2, 14491390), (4, 7245695), (5, 5796556), (10, 2898278), (20, 1449139), (439, 66020), (878, 33010), (1756, 16505), (2195, 13204), (3301, 8780), (4390, 6602)]