661940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1439}}^1$

素因数の和:1471

約数の個数: 24

約数和(自身を含む): 1451520

約数和(自身を除く): 789580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 1439, 2878, 5756, 7195, 14390, 28780, 33097, 66194, 132388, 165485, 330970, 661940]

約数ペア:

[(1, 661940), (2, 330970), (4, 165485), (5, 132388), (10, 66194), (20, 33097), (23, 28780), (46, 14390), (92, 7195), (115, 5756), (230, 2878), (460, 1439)]