78909945

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 139898880

約数和(自身を除く): 60988935

約数列:

[1, 3, 5, 15, 19, 43, 47, 57, 95, 129, 137, 141, 215, 235, 285, 411, 645, 685, 705, 817, 893, 2021, 2055, 2451, 2603, 2679, 4085, 4465, 5891, 6063, 6439, 7809, 10105, 12255, 13015, 13395, 17673, 19317, 29455, 30315, 32195, 38399, 39045, 88365, 96585, 111929, 115197, 122341, 191995, 276877, 335787, 367023, 559645, 575985, 611705, 830631, 1384385, 1678935, 1835115, 4153155, 5260663, 15781989, 26303315, 78909945]

約数ペア:

[(1, 78909945), (3, 26303315), (5, 15781989), (15, 5260663), (19, 4153155), (43, 1835115), (47, 1678935), (57, 1384385), (95, 830631), (129, 611705), (137, 575985), (141, 559645), (215, 367023), (235, 335787), (285, 276877), (411, 191995), (645, 122341), (685, 115197), (705, 111929), (817, 96585), (893, 88365), (2021, 39045), (2055, 38399), (2451, 32195), (2603, 30315), (2679, 29455), (4085, 19317), (4465, 17673), (5891, 13395), (6063, 13015), (6439, 12255), (7809, 10105)]