256657680

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3833}}^1$

素因数の和:3886

約数の個数: 160

約数和(自身を含む): 912798720

約数和(自身を除く): 656141040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 36, 40, 45, 48, 54, 60, 62, 72, 80, 90, 93, 108, 120, 124, 135, 144, 155, 180, 186, 216, 240, 248, 270, 279, 310, 360, 372, 432, 465, 496, 540, 558, 620, 720, 744, 837, 930, 1080, 1116, 1240, 1395, 1488, 1674, 1860, 2160, 2232, 2480, 2790, 3348, 3720, 3833, 4185, 4464, 5580, 6696, 7440, 7666, 8370, 11160, 11499, 13392, 15332, 16740, 19165, 22320, 22998, 30664, 33480, 34497, 38330, 45996, 57495, 61328, 66960, 68994, 76660, 91992, 103491, 114990, 118823, 137988, 153320, 172485, 183984, 206982, 229980, 237646, 275976, 306640, 344970, 356469, 413964, 459960, 475292, 517455, 551952, 594115, 689940, 712938, 827928, 919920, 950584, 1034910, 1069407, 1188230, 1379880, 1425876, 1655856, 1782345, 1901168, 2069820, 2138814, 2376460, 2759760, 2851752, 3208221, 3564690, 4139640, 4277628, 4752920, 5347035, 5703504, 6416442, 7129380, 8279280, 8555256, 9505840, 10694070, 12832884, 14258760, 16041105, 17110512, 21388140, 25665768, 28517520, 32082210, 42776280, 51331536, 64164420, 85552560, 128328840, 256657680]

約数ペア:

[(1, 256657680), (2, 128328840), (3, 85552560), (4, 64164420), (5, 51331536), (6, 42776280), (8, 32082210), (9, 28517520), (10, 25665768), (12, 21388140), (15, 17110512), (16, 16041105), (18, 14258760), (20, 12832884), (24, 10694070), (27, 9505840), (30, 8555256), (31, 8279280), (36, 7129380), (40, 6416442), (45, 5703504), (48, 5347035), (54, 4752920), (60, 4277628), (62, 4139640), (72, 3564690), (80, 3208221), (90, 2851752), (93, 2759760), (108, 2376460), (120, 2138814), (124, 2069820), (135, 1901168), (144, 1782345), (155, 1655856), (180, 1425876), (186, 1379880), (216, 1188230), (240, 1069407), (248, 1034910), (270, 950584), (279, 919920), (310, 827928), (360, 712938), (372, 689940), (432, 594115), (465, 551952), (496, 517455), (540, 475292), (558, 459960), (620, 413964), (720, 356469), (744, 344970), (837, 306640), (930, 275976), (1080, 237646), (1116, 229980), (1240, 206982), (1395, 183984), (1488, 172485), (1674, 153320), (1860, 137988), (2160, 118823), (2232, 114990), (2480, 103491), (2790, 91992), (3348, 76660), (3720, 68994), (3833, 66960), (4185, 61328), (4464, 57495), (5580, 45996), (6696, 38330), (7440, 34497), (7666, 33480), (8370, 30664), (11160, 22998), (11499, 22320), (13392, 19165), (15332, 16740)]