81547600

素因数分解:

$2^4\times 5^2\times {\mathrm{203869}}^1$

素因数の和:203887

約数の個数: 30

約数和(自身を含む): 195919070

約数和(自身を除く): 114371470

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 203869, 407738, 815476, 1019345, 1630952, 2038690, 3261904, 4077380, 5096725, 8154760, 10193450, 16309520, 20386900, 40773800, 81547600]

約数ペア:

[(1, 81547600), (2, 40773800), (4, 20386900), (5, 16309520), (8, 10193450), (10, 8154760), (16, 5096725), (20, 4077380), (25, 3261904), (40, 2038690), (50, 1630952), (80, 1019345), (100, 815476), (200, 407738), (400, 203869)]