51963640

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1303}}^1$

素因数の和:2311

約数の個数: 32

約数和(自身を含む): 117125280

約数和(自身を除く): 65161640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1303, 1994, 2606, 3988, 4985, 5212, 6515, 7976, 9970, 10424, 13030, 19940, 26060, 39880, 52120, 1299091, 2598182, 5196364, 6495455, 10392728, 12990910, 25981820, 51963640]

約数ペア:

[(1, 51963640), (2, 25981820), (4, 12990910), (5, 10392728), (8, 6495455), (10, 5196364), (20, 2598182), (40, 1299091), (997, 52120), (1303, 39880), (1994, 26060), (2606, 19940), (3988, 13030), (4985, 10424), (5212, 9970), (6515, 7976)]