28902325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:957

約数の個数: 24

約数和(自身を含む): 38301120

約数和(自身を除く): 9398795

約数列:

[1, 5, 19, 25, 71, 95, 355, 475, 857, 1349, 1775, 4285, 6745, 16283, 21425, 33725, 60847, 81415, 304235, 407075, 1156093, 1521175, 5780465, 28902325]

約数ペア:

[(1, 28902325), (5, 5780465), (19, 1521175), (25, 1156093), (71, 407075), (95, 304235), (355, 81415), (475, 60847), (857, 33725), (1349, 21425), (1775, 16283), (4285, 6745)]