256025280

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1287

約数の個数: 224

約数和(自身を含む): 959754240

約数和(自身を除く): 703728960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 64, 70, 80, 84, 93, 96, 105, 112, 120, 124, 140, 155, 160, 168, 186, 192, 210, 217, 224, 240, 248, 280, 310, 320, 336, 372, 420, 434, 448, 465, 480, 496, 560, 620, 651, 672, 744, 840, 868, 930, 960, 992, 1085, 1120, 1229, 1240, 1302, 1344, 1488, 1680, 1736, 1860, 1984, 2170, 2240, 2458, 2480, 2604, 2976, 3255, 3360, 3472, 3687, 3720, 4340, 4916, 4960, 5208, 5952, 6145, 6510, 6720, 6944, 7374, 7440, 8603, 8680, 9832, 9920, 10416, 12290, 13020, 13888, 14748, 14880, 17206, 17360, 18435, 19664, 20832, 24580, 25809, 26040, 29496, 29760, 34412, 34720, 36870, 38099, 39328, 41664, 43015, 49160, 51618, 52080, 58992, 68824, 69440, 73740, 76198, 78656, 86030, 98320, 103236, 104160, 114297, 117984, 129045, 137648, 147480, 152396, 172060, 190495, 196640, 206472, 208320, 228594, 235968, 258090, 266693, 275296, 294960, 304792, 344120, 380990, 393280, 412944, 457188, 516180, 533386, 550592, 571485, 589920, 609584, 688240, 761980, 800079, 825888, 914376, 1032360, 1066772, 1142970, 1179840, 1219168, 1333465, 1376480, 1523960, 1600158, 1651776, 1828752, 2064720, 2133544, 2285940, 2438336, 2666930, 2752960, 3047920, 3200316, 3657504, 4000395, 4129440, 4267088, 4571880, 5333860, 6095840, 6400632, 7315008, 8000790, 8258880, 8534176, 9143760, 10667720, 12191680, 12801264, 16001580, 17068352, 18287520, 21335440, 25602528, 32003160, 36575040, 42670880, 51205056, 64006320, 85341760, 128012640, 256025280]

約数ペア:

[(1, 256025280), (2, 128012640), (3, 85341760), (4, 64006320), (5, 51205056), (6, 42670880), (7, 36575040), (8, 32003160), (10, 25602528), (12, 21335440), (14, 18287520), (15, 17068352), (16, 16001580), (20, 12801264), (21, 12191680), (24, 10667720), (28, 9143760), (30, 8534176), (31, 8258880), (32, 8000790), (35, 7315008), (40, 6400632), (42, 6095840), (48, 5333860), (56, 4571880), (60, 4267088), (62, 4129440), (64, 4000395), (70, 3657504), (80, 3200316), (84, 3047920), (93, 2752960), (96, 2666930), (105, 2438336), (112, 2285940), (120, 2133544), (124, 2064720), (140, 1828752), (155, 1651776), (160, 1600158), (168, 1523960), (186, 1376480), (192, 1333465), (210, 1219168), (217, 1179840), (224, 1142970), (240, 1066772), (248, 1032360), (280, 914376), (310, 825888), (320, 800079), (336, 761980), (372, 688240), (420, 609584), (434, 589920), (448, 571485), (465, 550592), (480, 533386), (496, 516180), (560, 457188), (620, 412944), (651, 393280), (672, 380990), (744, 344120), (840, 304792), (868, 294960), (930, 275296), (960, 266693), (992, 258090), (1085, 235968), (1120, 228594), (1229, 208320), (1240, 206472), (1302, 196640), (1344, 190495), (1488, 172060), (1680, 152396), (1736, 147480), (1860, 137648), (1984, 129045), (2170, 117984), (2240, 114297), (2458, 104160), (2480, 103236), (2604, 98320), (2976, 86030), (3255, 78656), (3360, 76198), (3472, 73740), (3687, 69440), (3720, 68824), (4340, 58992), (4916, 52080), (4960, 51618), (5208, 49160), (5952, 43015), (6145, 41664), (6510, 39328), (6720, 38099), (6944, 36870), (7374, 34720), (7440, 34412), (8603, 29760), (8680, 29496), (9832, 26040), (9920, 25809), (10416, 24580), (12290, 20832), (13020, 19664), (13888, 18435), (14748, 17360), (14880, 17206)]