28693660

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1439}}^1$

素因数の和:2445

約数の個数: 24

約数和(自身を含む): 60359040

約数和(自身を除く): 31665380

約数列:

[1, 2, 4, 5, 10, 20, 997, 1439, 1994, 2878, 3988, 4985, 5756, 7195, 9970, 14390, 19940, 28780, 1434683, 2869366, 5738732, 7173415, 14346830, 28693660]

約数ペア:

[(1, 28693660), (2, 14346830), (4, 7173415), (5, 5738732), (10, 2869366), (20, 1434683), (997, 28780), (1439, 19940), (1994, 14390), (2878, 9970), (3988, 7195), (4985, 5756)]