28286245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 37538424

約数和(自身を除く): 9252179

約数列:

[1, 5, 13, 47, 65, 197, 235, 611, 985, 2209, 2561, 3055, 9259, 11045, 12805, 28717, 46295, 120367, 143585, 435173, 601835, 2175865, 5657249, 28286245]

約数ペア:

[(1, 28286245), (5, 5657249), (13, 2175865), (47, 601835), (65, 435173), (197, 143585), (235, 120367), (611, 46295), (985, 28717), (2209, 12805), (2561, 11045), (3055, 9259)]