256618560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1329

約数の個数: 224

約数和(自身を含む): 936345600

約数和(自身を除く): 679727040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 32, 33, 38, 40, 44, 48, 55, 57, 60, 64, 66, 76, 80, 88, 95, 96, 110, 114, 120, 132, 152, 160, 165, 176, 190, 192, 209, 220, 228, 240, 264, 285, 304, 320, 330, 352, 380, 418, 440, 456, 480, 528, 570, 608, 627, 660, 704, 760, 836, 880, 912, 960, 1045, 1056, 1140, 1216, 1254, 1279, 1320, 1520, 1672, 1760, 1824, 2090, 2112, 2280, 2508, 2558, 2640, 3040, 3135, 3344, 3520, 3648, 3837, 4180, 4560, 5016, 5116, 5280, 6080, 6270, 6395, 6688, 7674, 8360, 9120, 10032, 10232, 10560, 12540, 12790, 13376, 14069, 15348, 16720, 18240, 19185, 20064, 20464, 24301, 25080, 25580, 28138, 30696, 33440, 38370, 40128, 40928, 42207, 48602, 50160, 51160, 56276, 61392, 66880, 70345, 72903, 76740, 81856, 84414, 97204, 100320, 102320, 112552, 121505, 122784, 140690, 145806, 153480, 168828, 194408, 200640, 204640, 211035, 225104, 243010, 245568, 267311, 281380, 291612, 306960, 337656, 364515, 388816, 409280, 422070, 450208, 486020, 534622, 562760, 583224, 613920, 675312, 729030, 777632, 801933, 844140, 900416, 972040, 1069244, 1125520, 1166448, 1227840, 1336555, 1350624, 1458060, 1555264, 1603866, 1688280, 1944080, 2138488, 2251040, 2332896, 2673110, 2701248, 2916120, 3207732, 3376560, 3888160, 4009665, 4276976, 4502080, 4665792, 5346220, 5832240, 6415464, 6753120, 7776320, 8019330, 8553952, 10692440, 11664480, 12830928, 13506240, 16038660, 17107904, 21384880, 23328960, 25661856, 32077320, 42769760, 51323712, 64154640, 85539520, 128309280, 256618560]

約数ペア:

[(1, 256618560), (2, 128309280), (3, 85539520), (4, 64154640), (5, 51323712), (6, 42769760), (8, 32077320), (10, 25661856), (11, 23328960), (12, 21384880), (15, 17107904), (16, 16038660), (19, 13506240), (20, 12830928), (22, 11664480), (24, 10692440), (30, 8553952), (32, 8019330), (33, 7776320), (38, 6753120), (40, 6415464), (44, 5832240), (48, 5346220), (55, 4665792), (57, 4502080), (60, 4276976), (64, 4009665), (66, 3888160), (76, 3376560), (80, 3207732), (88, 2916120), (95, 2701248), (96, 2673110), (110, 2332896), (114, 2251040), (120, 2138488), (132, 1944080), (152, 1688280), (160, 1603866), (165, 1555264), (176, 1458060), (190, 1350624), (192, 1336555), (209, 1227840), (220, 1166448), (228, 1125520), (240, 1069244), (264, 972040), (285, 900416), (304, 844140), (320, 801933), (330, 777632), (352, 729030), (380, 675312), (418, 613920), (440, 583224), (456, 562760), (480, 534622), (528, 486020), (570, 450208), (608, 422070), (627, 409280), (660, 388816), (704, 364515), (760, 337656), (836, 306960), (880, 291612), (912, 281380), (960, 267311), (1045, 245568), (1056, 243010), (1140, 225104), (1216, 211035), (1254, 204640), (1279, 200640), (1320, 194408), (1520, 168828), (1672, 153480), (1760, 145806), (1824, 140690), (2090, 122784), (2112, 121505), (2280, 112552), (2508, 102320), (2558, 100320), (2640, 97204), (3040, 84414), (3135, 81856), (3344, 76740), (3520, 72903), (3648, 70345), (3837, 66880), (4180, 61392), (4560, 56276), (5016, 51160), (5116, 50160), (5280, 48602), (6080, 42207), (6270, 40928), (6395, 40128), (6688, 38370), (7674, 33440), (8360, 30696), (9120, 28138), (10032, 25580), (10232, 25080), (10560, 24301), (12540, 20464), (12790, 20064), (13376, 19185), (14069, 18240), (15348, 16720)]