205163210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{17981}}^1$

素因数の和:18158

約数の個数: 32

約数和(自身を含む): 424662912

約数和(自身を除く): 219499702

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 163, 326, 815, 1141, 1630, 2282, 5705, 11410, 17981, 35962, 89905, 125867, 179810, 251734, 629335, 1258670, 2930903, 5861806, 14654515, 20516321, 29309030, 41032642, 102581605, 205163210]

約数ペア:

[(1, 205163210), (2, 102581605), (5, 41032642), (7, 29309030), (10, 20516321), (14, 14654515), (35, 5861806), (70, 2930903), (163, 1258670), (326, 629335), (815, 251734), (1141, 179810), (1630, 125867), (2282, 89905), (5705, 35962), (11410, 17981)]