20343880

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7591}}^1$

素因数の和:7669

約数の個数: 32

約数和(自身を含む): 46463040

約数和(自身を除く): 26119160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7591, 15182, 30364, 37955, 60728, 75910, 151820, 303640, 508597, 1017194, 2034388, 2542985, 4068776, 5085970, 10171940, 20343880]

約数ペア:

[(1, 20343880), (2, 10171940), (4, 5085970), (5, 4068776), (8, 2542985), (10, 2034388), (20, 1017194), (40, 508597), (67, 303640), (134, 151820), (268, 75910), (335, 60728), (536, 37955), (670, 30364), (1340, 15182), (2680, 7591)]