208507975

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2903}}^1$

素因数の和:2956

約数の個数: 36

約数和(自身を含む): 296539056

約数和(自身を除く): 88031081

約数列:

[1, 5, 13, 17, 25, 65, 85, 169, 221, 325, 425, 845, 1105, 2873, 2903, 4225, 5525, 14365, 14515, 37739, 49351, 71825, 72575, 188695, 246755, 490607, 641563, 943475, 1233775, 2453035, 3207815, 8340319, 12265175, 16039075, 41701595, 208507975]

約数ペア:

[(1, 208507975), (5, 41701595), (13, 16039075), (17, 12265175), (25, 8340319), (65, 3207815), (85, 2453035), (169, 1233775), (221, 943475), (325, 641563), (425, 490607), (845, 246755), (1105, 188695), (2873, 72575), (2903, 71825), (4225, 49351), (5525, 37739), (14365, 14515)]