320410888

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{491}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 706590720

約数和(自身を除く): 386179832

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 271, 301, 344, 491, 542, 602, 982, 1084, 1204, 1897, 1964, 2168, 2408, 3437, 3794, 3928, 6874, 7588, 11653, 13748, 15176, 21113, 23306, 27496, 42226, 46612, 81571, 84452, 93224, 133061, 147791, 163142, 168904, 266122, 295582, 326284, 532244, 591164, 652568, 931427, 1064488, 1182328, 1862854, 3725708, 5721623, 7451416, 11443246, 22886492, 40051361, 45772984, 80102722, 160205444, 320410888]

約数ペア:

[(1, 320410888), (2, 160205444), (4, 80102722), (7, 45772984), (8, 40051361), (14, 22886492), (28, 11443246), (43, 7451416), (56, 5721623), (86, 3725708), (172, 1862854), (271, 1182328), (301, 1064488), (344, 931427), (491, 652568), (542, 591164), (602, 532244), (982, 326284), (1084, 295582), (1204, 266122), (1897, 168904), (1964, 163142), (2168, 147791), (2408, 133061), (3437, 93224), (3794, 84452), (3928, 81571), (6874, 46612), (7588, 42226), (11653, 27496), (13748, 23306), (15176, 21113)]