28267725

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 49996800

約数和(自身を除く): 21729075

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 83, 95, 239, 249, 285, 415, 475, 717, 1195, 1245, 1425, 1577, 2075, 3585, 4541, 4731, 5975, 6225, 7885, 13623, 17925, 19837, 22705, 23655, 39425, 59511, 68115, 99185, 113525, 118275, 297555, 340575, 376903, 495925, 1130709, 1487775, 1884515, 5653545, 9422575, 28267725]

約数ペア:

[(1, 28267725), (3, 9422575), (5, 5653545), (15, 1884515), (19, 1487775), (25, 1130709), (57, 495925), (75, 376903), (83, 340575), (95, 297555), (239, 118275), (249, 113525), (285, 99185), (415, 68115), (475, 59511), (717, 39425), (1195, 23655), (1245, 22705), (1425, 19837), (1577, 17925), (2075, 13623), (3585, 7885), (4541, 6225), (4731, 5975)]