25399725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 45830400

約数和(自身を除く): 20430675

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 109, 195, 239, 325, 327, 545, 717, 975, 1195, 1417, 1635, 2725, 3107, 3585, 4251, 5975, 7085, 8175, 9321, 15535, 17925, 21255, 26051, 35425, 46605, 77675, 78153, 106275, 130255, 233025, 338663, 390765, 651275, 1015989, 1693315, 1953825, 5079945, 8466575, 25399725]

約数ペア:

[(1, 25399725), (3, 8466575), (5, 5079945), (13, 1953825), (15, 1693315), (25, 1015989), (39, 651275), (65, 390765), (75, 338663), (109, 233025), (195, 130255), (239, 106275), (325, 78153), (327, 77675), (545, 46605), (717, 35425), (975, 26051), (1195, 21255), (1417, 17925), (1635, 15535), (2725, 9321), (3107, 8175), (3585, 7085), (4251, 5975)]