25841180

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1997}}^1$

素因数の和:2653

約数の個数: 24

約数和(自身を含む): 54377568

約数和(自身を除く): 28536388

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 1997, 2588, 3235, 3994, 6470, 7988, 9985, 12940, 19970, 39940, 1292059, 2584118, 5168236, 6460295, 12920590, 25841180]

約数ペア:

[(1, 25841180), (2, 12920590), (4, 6460295), (5, 5168236), (10, 2584118), (20, 1292059), (647, 39940), (1294, 19970), (1997, 12940), (2588, 9985), (3235, 7988), (3994, 6470)]