78956721

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{179}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 128692800

約数和(自身を除く): 49736079

約数列:

[1, 3, 9, 17, 27, 31, 51, 93, 153, 179, 279, 459, 527, 537, 837, 961, 1581, 1611, 2883, 3043, 4743, 4833, 5549, 8649, 9129, 14229, 16337, 16647, 25947, 27387, 49011, 49941, 82161, 94333, 147033, 149823, 172019, 282999, 441099, 516057, 848997, 1548171, 2546991, 2924323, 4644513, 8772969, 26318907, 78956721]

約数ペア:

[(1, 78956721), (3, 26318907), (9, 8772969), (17, 4644513), (27, 2924323), (31, 2546991), (51, 1548171), (93, 848997), (153, 516057), (179, 441099), (279, 282999), (459, 172019), (527, 149823), (537, 147033), (837, 94333), (961, 82161), (1581, 49941), (1611, 49011), (2883, 27387), (3043, 25947), (4743, 16647), (4833, 16337), (5549, 14229), (8649, 9129)]