256534920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:356

約数の個数: 192

約数和(自身を含む): 872202240

約数和(自身を除く): 615667320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 127, 155, 180, 181, 186, 248, 254, 279, 310, 360, 362, 372, 381, 465, 508, 543, 558, 620, 635, 724, 744, 762, 905, 930, 1016, 1086, 1116, 1143, 1240, 1270, 1395, 1448, 1524, 1629, 1810, 1860, 1905, 2172, 2232, 2286, 2540, 2715, 2790, 3048, 3258, 3620, 3720, 3810, 3937, 4344, 4572, 5080, 5430, 5580, 5611, 5715, 6516, 7240, 7620, 7874, 8145, 9144, 10860, 11160, 11222, 11430, 11811, 13032, 15240, 15748, 16290, 16833, 19685, 21720, 22444, 22860, 22987, 23622, 28055, 31496, 32580, 33666, 35433, 39370, 44888, 45720, 45974, 47244, 50499, 56110, 59055, 65160, 67332, 68961, 70866, 78740, 84165, 91948, 94488, 100998, 112220, 114935, 118110, 134664, 137922, 141732, 157480, 168330, 177165, 183896, 201996, 206883, 224440, 229870, 236220, 252495, 275844, 283464, 336660, 344805, 354330, 403992, 413766, 459740, 472440, 504990, 551688, 673320, 689610, 708660, 712597, 827532, 919480, 1009980, 1034415, 1379220, 1417320, 1425194, 1655064, 2019960, 2068830, 2137791, 2758440, 2850388, 3562985, 4137660, 4275582, 5700776, 6413373, 7125970, 8275320, 8551164, 10688955, 12826746, 14251940, 17102328, 21377910, 25653492, 28503880, 32066865, 42755820, 51306984, 64133730, 85511640, 128267460, 256534920]

約数ペア:

[(1, 256534920), (2, 128267460), (3, 85511640), (4, 64133730), (5, 51306984), (6, 42755820), (8, 32066865), (9, 28503880), (10, 25653492), (12, 21377910), (15, 17102328), (18, 14251940), (20, 12826746), (24, 10688955), (30, 8551164), (31, 8275320), (36, 7125970), (40, 6413373), (45, 5700776), (60, 4275582), (62, 4137660), (72, 3562985), (90, 2850388), (93, 2758440), (120, 2137791), (124, 2068830), (127, 2019960), (155, 1655064), (180, 1425194), (181, 1417320), (186, 1379220), (248, 1034415), (254, 1009980), (279, 919480), (310, 827532), (360, 712597), (362, 708660), (372, 689610), (381, 673320), (465, 551688), (508, 504990), (543, 472440), (558, 459740), (620, 413766), (635, 403992), (724, 354330), (744, 344805), (762, 336660), (905, 283464), (930, 275844), (1016, 252495), (1086, 236220), (1116, 229870), (1143, 224440), (1240, 206883), (1270, 201996), (1395, 183896), (1448, 177165), (1524, 168330), (1629, 157480), (1810, 141732), (1860, 137922), (1905, 134664), (2172, 118110), (2232, 114935), (2286, 112220), (2540, 100998), (2715, 94488), (2790, 91948), (3048, 84165), (3258, 78740), (3620, 70866), (3720, 68961), (3810, 67332), (3937, 65160), (4344, 59055), (4572, 56110), (5080, 50499), (5430, 47244), (5580, 45974), (5611, 45720), (5715, 44888), (6516, 39370), (7240, 35433), (7620, 33666), (7874, 32580), (8145, 31496), (9144, 28055), (10860, 23622), (11160, 22987), (11222, 22860), (11430, 22444), (11811, 21720), (13032, 19685), (15240, 16833), (15748, 16290)]