28347725

素因数分解:

$5^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:414

約数の個数: 36

約数和(自身を含む): 41581044

約数和(自身を除く): 13233319

約数列:

[1, 5, 7, 25, 35, 49, 73, 175, 245, 317, 365, 511, 1225, 1585, 1825, 2219, 2555, 3577, 7925, 11095, 12775, 15533, 17885, 23141, 55475, 77665, 89425, 115705, 161987, 388325, 578525, 809935, 1133909, 4049675, 5669545, 28347725]

約数ペア:

[(1, 28347725), (5, 5669545), (7, 4049675), (25, 1133909), (35, 809935), (49, 578525), (73, 388325), (175, 161987), (245, 115705), (317, 89425), (365, 77665), (511, 55475), (1225, 23141), (1585, 17885), (1825, 15533), (2219, 12775), (2555, 11095), (3577, 7925)]