1393979944

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1\times {\mathrm{719}}^1$

素因数の和:1210

約数の個数: 64

約数和(自身を含む): 3032640000

約数和(自身を除く): 1638660056

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 389, 623, 712, 719, 778, 1246, 1438, 1556, 2492, 2723, 2876, 3112, 4984, 5033, 5446, 5752, 10066, 10892, 20132, 21784, 34621, 40264, 63991, 69242, 127982, 138484, 242347, 255964, 276968, 279691, 447937, 484694, 511928, 559382, 895874, 969388, 1118764, 1791748, 1938776, 1957837, 2237528, 3583496, 3915674, 7831348, 15662696, 24892499, 49784998, 99569996, 174247493, 199139992, 348494986, 696989972, 1393979944]

約数ペア:

[(1, 1393979944), (2, 696989972), (4, 348494986), (7, 199139992), (8, 174247493), (14, 99569996), (28, 49784998), (56, 24892499), (89, 15662696), (178, 7831348), (356, 3915674), (389, 3583496), (623, 2237528), (712, 1957837), (719, 1938776), (778, 1791748), (1246, 1118764), (1438, 969388), (1556, 895874), (2492, 559382), (2723, 511928), (2876, 484694), (3112, 447937), (4984, 279691), (5033, 276968), (5446, 255964), (5752, 242347), (10066, 138484), (10892, 127982), (20132, 69242), (21784, 63991), (34621, 40264)]