28756725

素因数分解:

$3^1\times 5^2\times {\mathrm{457}}^1\times {\mathrm{839}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 47705280

約数和(自身を除く): 18948555

約数列:

[1, 3, 5, 15, 25, 75, 457, 839, 1371, 2285, 2517, 4195, 6855, 11425, 12585, 20975, 34275, 62925, 383423, 1150269, 1917115, 5751345, 9585575, 28756725]

約数ペア:

[(1, 28756725), (3, 9585575), (5, 5751345), (15, 1917115), (25, 1150269), (75, 383423), (457, 62925), (839, 34275), (1371, 20975), (2285, 12585), (2517, 11425), (4195, 6855)]