161007925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{6271}}^1$

素因数の和:6373

約数の個数: 24

約数和(自身を含む): 217763840

約数和(自身を除く): 56755915

約数列:

[1, 5, 13, 25, 65, 79, 325, 395, 1027, 1975, 5135, 6271, 25675, 31355, 81523, 156775, 407615, 495409, 2038075, 2477045, 6440317, 12385225, 32201585, 161007925]

約数ペア:

[(1, 161007925), (5, 32201585), (13, 12385225), (25, 6440317), (65, 2477045), (79, 2038075), (325, 495409), (395, 407615), (1027, 156775), (1975, 81523), (5135, 31355), (6271, 25675)]