256253340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2027}}^1$

素因数の和:2096

約数の個数: 144

約数和(自身を含む): 854485632

約数和(自身を除く): 598232292

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 210, 215, 245, 258, 294, 301, 420, 430, 490, 516, 588, 602, 645, 735, 860, 903, 980, 1204, 1290, 1470, 1505, 1806, 2027, 2107, 2580, 2940, 3010, 3612, 4054, 4214, 4515, 6020, 6081, 6321, 8108, 8428, 9030, 10135, 10535, 12162, 12642, 14189, 18060, 20270, 21070, 24324, 25284, 28378, 30405, 31605, 40540, 42140, 42567, 56756, 60810, 63210, 70945, 85134, 87161, 99323, 121620, 126420, 141890, 170268, 174322, 198646, 212835, 261483, 283780, 297969, 348644, 397292, 425670, 435805, 496615, 522966, 595938, 610127, 851340, 871610, 993230, 1045932, 1191876, 1220254, 1307415, 1489845, 1743220, 1830381, 1986460, 2440508, 2614830, 2979690, 3050635, 3660762, 4270889, 5229660, 5959380, 6101270, 7321524, 8541778, 9151905, 12202540, 12812667, 17083556, 18303810, 21354445, 25625334, 36607620, 42708890, 51250668, 64063335, 85417780, 128126670, 256253340]

約数ペア:

[(1, 256253340), (2, 128126670), (3, 85417780), (4, 64063335), (5, 51250668), (6, 42708890), (7, 36607620), (10, 25625334), (12, 21354445), (14, 18303810), (15, 17083556), (20, 12812667), (21, 12202540), (28, 9151905), (30, 8541778), (35, 7321524), (42, 6101270), (43, 5959380), (49, 5229660), (60, 4270889), (70, 3660762), (84, 3050635), (86, 2979690), (98, 2614830), (105, 2440508), (129, 1986460), (140, 1830381), (147, 1743220), (172, 1489845), (196, 1307415), (210, 1220254), (215, 1191876), (245, 1045932), (258, 993230), (294, 871610), (301, 851340), (420, 610127), (430, 595938), (490, 522966), (516, 496615), (588, 435805), (602, 425670), (645, 397292), (735, 348644), (860, 297969), (903, 283780), (980, 261483), (1204, 212835), (1290, 198646), (1470, 174322), (1505, 170268), (1806, 141890), (2027, 126420), (2107, 121620), (2580, 99323), (2940, 87161), (3010, 85134), (3612, 70945), (4054, 63210), (4214, 60810), (4515, 56756), (6020, 42567), (6081, 42140), (6321, 40540), (8108, 31605), (8428, 30405), (9030, 28378), (10135, 25284), (10535, 24324), (12162, 21070), (12642, 20270), (14189, 18060)]