256497360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1283}}^1$

素因数の和:1330

約数の個数: 240

約数和(自身を含む): 980133696

約数和(自身を除く): 723636336

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 48, 49, 51, 56, 60, 68, 70, 80, 84, 85, 98, 102, 105, 112, 119, 120, 136, 140, 147, 168, 170, 196, 204, 210, 238, 240, 245, 255, 272, 280, 294, 336, 340, 357, 392, 408, 420, 476, 490, 510, 560, 588, 595, 680, 714, 735, 784, 816, 833, 840, 952, 980, 1020, 1176, 1190, 1283, 1360, 1428, 1470, 1666, 1680, 1785, 1904, 1960, 2040, 2352, 2380, 2499, 2566, 2856, 2940, 3332, 3570, 3849, 3920, 4080, 4165, 4760, 4998, 5132, 5712, 5880, 6415, 6664, 7140, 7698, 8330, 8981, 9520, 9996, 10264, 11760, 12495, 12830, 13328, 14280, 15396, 16660, 17962, 19245, 19992, 20528, 21811, 24990, 25660, 26943, 28560, 30792, 33320, 35924, 38490, 39984, 43622, 44905, 49980, 51320, 53886, 61584, 62867, 65433, 66640, 71848, 76980, 87244, 89810, 99960, 102640, 107772, 109055, 125734, 130866, 134715, 143696, 152677, 153960, 174488, 179620, 188601, 199920, 215544, 218110, 251468, 261732, 269430, 305354, 307920, 314335, 327165, 348976, 359240, 377202, 431088, 436220, 458031, 502936, 523464, 538860, 610708, 628670, 654330, 718480, 754404, 763385, 872440, 916062, 943005, 1005872, 1046928, 1068739, 1077720, 1221416, 1257340, 1308660, 1508808, 1526770, 1744880, 1832124, 1886010, 2137478, 2155440, 2290155, 2442832, 2514680, 2617320, 3017616, 3053540, 3206217, 3664248, 3772020, 4274956, 4580310, 5029360, 5234640, 5343695, 6107080, 6412434, 7328496, 7544040, 8549912, 9160620, 10687390, 12214160, 12824868, 15088080, 16031085, 17099824, 18321240, 21374780, 25649736, 32062170, 36642480, 42749560, 51299472, 64124340, 85499120, 128248680, 256497360]

約数ペア:

[(1, 256497360), (2, 128248680), (3, 85499120), (4, 64124340), (5, 51299472), (6, 42749560), (7, 36642480), (8, 32062170), (10, 25649736), (12, 21374780), (14, 18321240), (15, 17099824), (16, 16031085), (17, 15088080), (20, 12824868), (21, 12214160), (24, 10687390), (28, 9160620), (30, 8549912), (34, 7544040), (35, 7328496), (40, 6412434), (42, 6107080), (48, 5343695), (49, 5234640), (51, 5029360), (56, 4580310), (60, 4274956), (68, 3772020), (70, 3664248), (80, 3206217), (84, 3053540), (85, 3017616), (98, 2617320), (102, 2514680), (105, 2442832), (112, 2290155), (119, 2155440), (120, 2137478), (136, 1886010), (140, 1832124), (147, 1744880), (168, 1526770), (170, 1508808), (196, 1308660), (204, 1257340), (210, 1221416), (238, 1077720), (240, 1068739), (245, 1046928), (255, 1005872), (272, 943005), (280, 916062), (294, 872440), (336, 763385), (340, 754404), (357, 718480), (392, 654330), (408, 628670), (420, 610708), (476, 538860), (490, 523464), (510, 502936), (560, 458031), (588, 436220), (595, 431088), (680, 377202), (714, 359240), (735, 348976), (784, 327165), (816, 314335), (833, 307920), (840, 305354), (952, 269430), (980, 261732), (1020, 251468), (1176, 218110), (1190, 215544), (1283, 199920), (1360, 188601), (1428, 179620), (1470, 174488), (1666, 153960), (1680, 152677), (1785, 143696), (1904, 134715), (1960, 130866), (2040, 125734), (2352, 109055), (2380, 107772), (2499, 102640), (2566, 99960), (2856, 89810), (2940, 87244), (3332, 76980), (3570, 71848), (3849, 66640), (3920, 65433), (4080, 62867), (4165, 61584), (4760, 53886), (4998, 51320), (5132, 49980), (5712, 44905), (5880, 43622), (6415, 39984), (6664, 38490), (7140, 35924), (7698, 33320), (8330, 30792), (8981, 28560), (9520, 26943), (9996, 25660), (10264, 24990), (11760, 21811), (12495, 20528), (12830, 19992), (13328, 19245), (14280, 17962), (15396, 16660)]