197852005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 261975168

約数和(自身を除く): 64123163

約数列:

[1, 5, 13, 65, 67, 181, 251, 335, 871, 905, 1255, 2353, 3263, 4355, 11765, 12127, 16315, 16817, 45431, 60635, 84085, 157651, 218621, 227155, 590603, 788255, 1093105, 2953015, 3043877, 15219385, 39570401, 197852005]

約数ペア:

[(1, 197852005), (5, 39570401), (13, 15219385), (65, 3043877), (67, 2953015), (181, 1093105), (251, 788255), (335, 590603), (871, 227155), (905, 218621), (1255, 157651), (2353, 84085), (3263, 60635), (4355, 45431), (11765, 16817), (12127, 16315)]