256870440

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:435

約数の個数: 224

約数和(自身を含む): 906577920

約数和(自身を除く): 649707480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 81, 90, 92, 108, 115, 120, 135, 138, 162, 180, 184, 207, 216, 230, 243, 270, 276, 324, 345, 360, 383, 405, 414, 460, 486, 540, 552, 621, 648, 690, 729, 766, 810, 828, 920, 972, 1035, 1080, 1149, 1215, 1242, 1380, 1458, 1532, 1620, 1656, 1863, 1915, 1944, 2070, 2298, 2430, 2484, 2760, 2916, 3064, 3105, 3240, 3447, 3645, 3726, 3830, 4140, 4596, 4860, 4968, 5589, 5745, 5832, 6210, 6894, 7290, 7452, 7660, 8280, 8809, 9192, 9315, 9720, 10341, 11178, 11490, 12420, 13788, 14580, 14904, 15320, 16767, 17235, 17618, 18630, 20682, 22356, 22980, 24840, 26427, 27576, 27945, 29160, 31023, 33534, 34470, 35236, 37260, 41364, 44045, 44712, 45960, 51705, 52854, 55890, 62046, 67068, 68940, 70472, 74520, 79281, 82728, 83835, 88090, 93069, 103410, 105708, 111780, 124092, 132135, 134136, 137880, 155115, 158562, 167670, 176180, 186138, 206820, 211416, 223560, 237843, 248184, 264270, 279207, 310230, 317124, 335340, 352360, 372276, 396405, 413640, 465345, 475686, 528540, 558414, 620460, 634248, 670680, 713529, 744552, 792810, 930690, 951372, 1057080, 1116828, 1189215, 1240920, 1396035, 1427058, 1585620, 1861380, 1902744, 2140587, 2233656, 2378430, 2792070, 2854116, 3171240, 3567645, 3722760, 4281174, 4756860, 5584140, 5708232, 6421761, 7135290, 8562348, 9513720, 10702935, 11168280, 12843522, 14270580, 17124696, 21405870, 25687044, 28541160, 32108805, 42811740, 51374088, 64217610, 85623480, 128435220, 256870440]

約数ペア:

[(1, 256870440), (2, 128435220), (3, 85623480), (4, 64217610), (5, 51374088), (6, 42811740), (8, 32108805), (9, 28541160), (10, 25687044), (12, 21405870), (15, 17124696), (18, 14270580), (20, 12843522), (23, 11168280), (24, 10702935), (27, 9513720), (30, 8562348), (36, 7135290), (40, 6421761), (45, 5708232), (46, 5584140), (54, 4756860), (60, 4281174), (69, 3722760), (72, 3567645), (81, 3171240), (90, 2854116), (92, 2792070), (108, 2378430), (115, 2233656), (120, 2140587), (135, 1902744), (138, 1861380), (162, 1585620), (180, 1427058), (184, 1396035), (207, 1240920), (216, 1189215), (230, 1116828), (243, 1057080), (270, 951372), (276, 930690), (324, 792810), (345, 744552), (360, 713529), (383, 670680), (405, 634248), (414, 620460), (460, 558414), (486, 528540), (540, 475686), (552, 465345), (621, 413640), (648, 396405), (690, 372276), (729, 352360), (766, 335340), (810, 317124), (828, 310230), (920, 279207), (972, 264270), (1035, 248184), (1080, 237843), (1149, 223560), (1215, 211416), (1242, 206820), (1380, 186138), (1458, 176180), (1532, 167670), (1620, 158562), (1656, 155115), (1863, 137880), (1915, 134136), (1944, 132135), (2070, 124092), (2298, 111780), (2430, 105708), (2484, 103410), (2760, 93069), (2916, 88090), (3064, 83835), (3105, 82728), (3240, 79281), (3447, 74520), (3645, 70472), (3726, 68940), (3830, 67068), (4140, 62046), (4596, 55890), (4860, 52854), (4968, 51705), (5589, 45960), (5745, 44712), (5832, 44045), (6210, 41364), (6894, 37260), (7290, 35236), (7452, 34470), (7660, 33534), (8280, 31023), (8809, 29160), (9192, 27945), (9315, 27576), (9720, 26427), (10341, 24840), (11178, 22980), (11490, 22356), (12420, 20682), (13788, 18630), (14580, 17618), (14904, 17235), (15320, 16767)]