256516008

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:447

約数の個数: 128

約数和(自身を含む): 758661120

約数和(自身を除く): 502145112

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 41, 42, 56, 82, 84, 123, 164, 167, 168, 223, 246, 287, 328, 334, 446, 492, 501, 574, 668, 669, 861, 892, 984, 1002, 1148, 1169, 1336, 1338, 1561, 1722, 1784, 2004, 2296, 2338, 2676, 3122, 3444, 3507, 4008, 4676, 4683, 5352, 6244, 6847, 6888, 7014, 9143, 9352, 9366, 12488, 13694, 14028, 18286, 18732, 20541, 27388, 27429, 28056, 36572, 37241, 37464, 41082, 47929, 54776, 54858, 64001, 73144, 74482, 82164, 95858, 109716, 111723, 128002, 143787, 148964, 164328, 191716, 192003, 219432, 223446, 256004, 260687, 287574, 297928, 383432, 384006, 446892, 512008, 521374, 575148, 768012, 782061, 893784, 1042748, 1150296, 1526881, 1536024, 1564122, 2085496, 3053762, 3128244, 4580643, 6107524, 6256488, 9161286, 10688167, 12215048, 18322572, 21376334, 32064501, 36645144, 42752668, 64129002, 85505336, 128258004, 256516008]

約数ペア:

[(1, 256516008), (2, 128258004), (3, 85505336), (4, 64129002), (6, 42752668), (7, 36645144), (8, 32064501), (12, 21376334), (14, 18322572), (21, 12215048), (24, 10688167), (28, 9161286), (41, 6256488), (42, 6107524), (56, 4580643), (82, 3128244), (84, 3053762), (123, 2085496), (164, 1564122), (167, 1536024), (168, 1526881), (223, 1150296), (246, 1042748), (287, 893784), (328, 782061), (334, 768012), (446, 575148), (492, 521374), (501, 512008), (574, 446892), (668, 384006), (669, 383432), (861, 297928), (892, 287574), (984, 260687), (1002, 256004), (1148, 223446), (1169, 219432), (1336, 192003), (1338, 191716), (1561, 164328), (1722, 148964), (1784, 143787), (2004, 128002), (2296, 111723), (2338, 109716), (2676, 95858), (3122, 82164), (3444, 74482), (3507, 73144), (4008, 64001), (4676, 54858), (4683, 54776), (5352, 47929), (6244, 41082), (6847, 37464), (6888, 37241), (7014, 36572), (9143, 28056), (9352, 27429), (9366, 27388), (12488, 20541), (13694, 18732), (14028, 18286)]