28364520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 91238400

約数和(自身を除く): 62873880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 43, 46, 60, 69, 86, 92, 115, 120, 129, 138, 172, 184, 215, 230, 239, 258, 276, 344, 345, 430, 460, 478, 516, 552, 645, 690, 717, 860, 920, 956, 989, 1032, 1195, 1290, 1380, 1434, 1720, 1912, 1978, 2390, 2580, 2760, 2868, 2967, 3585, 3956, 4780, 4945, 5160, 5497, 5736, 5934, 7170, 7912, 9560, 9890, 10277, 10994, 11868, 14340, 14835, 16491, 19780, 20554, 21988, 23736, 27485, 28680, 29670, 30831, 32982, 39560, 41108, 43976, 51385, 54970, 59340, 61662, 65964, 82216, 82455, 102770, 109940, 118680, 123324, 131928, 154155, 164910, 205540, 219880, 236371, 246648, 308310, 329820, 411080, 472742, 616620, 659640, 709113, 945484, 1181855, 1233240, 1418226, 1890968, 2363710, 2836452, 3545565, 4727420, 5672904, 7091130, 9454840, 14182260, 28364520]

約数ペア:

[(1, 28364520), (2, 14182260), (3, 9454840), (4, 7091130), (5, 5672904), (6, 4727420), (8, 3545565), (10, 2836452), (12, 2363710), (15, 1890968), (20, 1418226), (23, 1233240), (24, 1181855), (30, 945484), (40, 709113), (43, 659640), (46, 616620), (60, 472742), (69, 411080), (86, 329820), (92, 308310), (115, 246648), (120, 236371), (129, 219880), (138, 205540), (172, 164910), (184, 154155), (215, 131928), (230, 123324), (239, 118680), (258, 109940), (276, 102770), (344, 82455), (345, 82216), (430, 65964), (460, 61662), (478, 59340), (516, 54970), (552, 51385), (645, 43976), (690, 41108), (717, 39560), (860, 32982), (920, 30831), (956, 29670), (989, 28680), (1032, 27485), (1195, 23736), (1290, 21988), (1380, 20554), (1434, 19780), (1720, 16491), (1912, 14835), (1978, 14340), (2390, 11868), (2580, 10994), (2760, 10277), (2868, 9890), (2967, 9560), (3585, 7912), (3956, 7170), (4780, 5934), (4945, 5736), (5160, 5497)]