28782775

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7151}}^1$

素因数の和:7191

約数の個数: 24

約数和(自身を含む): 42568704

約数和(自身を除く): 13785929

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 7151, 35755, 50057, 164473, 178775, 250285, 822365, 1151311, 1251425, 4111825, 5756555, 28782775]

約数ペア:

[(1, 28782775), (5, 5756555), (7, 4111825), (23, 1251425), (25, 1151311), (35, 822365), (115, 250285), (161, 178775), (175, 164473), (575, 50057), (805, 35755), (4025, 7151)]