256492080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:508

約数の個数: 240

約数和(自身を含む): 943793760

約数和(自身を除く): 687301680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 67, 72, 78, 80, 90, 104, 117, 120, 130, 134, 144, 156, 180, 195, 201, 208, 234, 240, 260, 268, 312, 335, 360, 390, 402, 409, 468, 520, 536, 585, 603, 624, 670, 720, 780, 804, 818, 871, 936, 1005, 1040, 1072, 1170, 1206, 1227, 1340, 1560, 1608, 1636, 1742, 1872, 2010, 2045, 2340, 2412, 2454, 2613, 2680, 3015, 3120, 3216, 3272, 3484, 3681, 4020, 4090, 4355, 4680, 4824, 4908, 5226, 5317, 5360, 6030, 6135, 6544, 6968, 7362, 7839, 8040, 8180, 8710, 9360, 9648, 9816, 10452, 10634, 12060, 12270, 13065, 13936, 14724, 15678, 15951, 16080, 16360, 17420, 18405, 19632, 20904, 21268, 24120, 24540, 26130, 26585, 27403, 29448, 31356, 31902, 32720, 34840, 36810, 39195, 41808, 42536, 47853, 48240, 49080, 52260, 53170, 54806, 58896, 62712, 63804, 69680, 73620, 78390, 79755, 82209, 85072, 95706, 98160, 104520, 106340, 109612, 125424, 127608, 137015, 147240, 156780, 159510, 164418, 191412, 209040, 212680, 219224, 239265, 246627, 255216, 274030, 294480, 313560, 319020, 328836, 356239, 382824, 411045, 425360, 438448, 478530, 493254, 548060, 627120, 638040, 657672, 712478, 765648, 822090, 957060, 986508, 1068717, 1096120, 1233135, 1276080, 1315344, 1424956, 1644180, 1781195, 1914120, 1973016, 2137434, 2192240, 2466270, 2849912, 3206151, 3288360, 3562390, 3828240, 3946032, 4274868, 4932540, 5343585, 5699824, 6412302, 6576720, 7124780, 8549736, 9865080, 10687170, 12824604, 14249560, 16030755, 17099472, 19730160, 21374340, 25649208, 28499120, 32061510, 42748680, 51298416, 64123020, 85497360, 128246040, 256492080]

約数ペア:

[(1, 256492080), (2, 128246040), (3, 85497360), (4, 64123020), (5, 51298416), (6, 42748680), (8, 32061510), (9, 28499120), (10, 25649208), (12, 21374340), (13, 19730160), (15, 17099472), (16, 16030755), (18, 14249560), (20, 12824604), (24, 10687170), (26, 9865080), (30, 8549736), (36, 7124780), (39, 6576720), (40, 6412302), (45, 5699824), (48, 5343585), (52, 4932540), (60, 4274868), (65, 3946032), (67, 3828240), (72, 3562390), (78, 3288360), (80, 3206151), (90, 2849912), (104, 2466270), (117, 2192240), (120, 2137434), (130, 1973016), (134, 1914120), (144, 1781195), (156, 1644180), (180, 1424956), (195, 1315344), (201, 1276080), (208, 1233135), (234, 1096120), (240, 1068717), (260, 986508), (268, 957060), (312, 822090), (335, 765648), (360, 712478), (390, 657672), (402, 638040), (409, 627120), (468, 548060), (520, 493254), (536, 478530), (585, 438448), (603, 425360), (624, 411045), (670, 382824), (720, 356239), (780, 328836), (804, 319020), (818, 313560), (871, 294480), (936, 274030), (1005, 255216), (1040, 246627), (1072, 239265), (1170, 219224), (1206, 212680), (1227, 209040), (1340, 191412), (1560, 164418), (1608, 159510), (1636, 156780), (1742, 147240), (1872, 137015), (2010, 127608), (2045, 125424), (2340, 109612), (2412, 106340), (2454, 104520), (2613, 98160), (2680, 95706), (3015, 85072), (3120, 82209), (3216, 79755), (3272, 78390), (3484, 73620), (3681, 69680), (4020, 63804), (4090, 62712), (4355, 58896), (4680, 54806), (4824, 53170), (4908, 52260), (5226, 49080), (5317, 48240), (5360, 47853), (6030, 42536), (6135, 41808), (6544, 39195), (6968, 36810), (7362, 34840), (7839, 32720), (8040, 31902), (8180, 31356), (8710, 29448), (9360, 27403), (9648, 26585), (9816, 26130), (10452, 24540), (10634, 24120), (12060, 21268), (12270, 20904), (13065, 19632), (13936, 18405), (14724, 17420), (15678, 16360), (15951, 16080)]