12778976

素因数分解:

$2^5\times 7^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1$

素因数の和:747

約数の個数: 48

約数和(自身を含む): 29121120

約数和(自身を除く): 16342144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 89, 112, 178, 224, 356, 623, 641, 712, 1246, 1282, 1424, 2492, 2564, 2848, 4487, 4984, 5128, 8974, 9968, 10256, 17948, 19936, 20512, 35896, 57049, 71792, 114098, 143584, 228196, 399343, 456392, 798686, 912784, 1597372, 1825568, 3194744, 6389488, 12778976]

約数ペア:

[(1, 12778976), (2, 6389488), (4, 3194744), (7, 1825568), (8, 1597372), (14, 912784), (16, 798686), (28, 456392), (32, 399343), (56, 228196), (89, 143584), (112, 114098), (178, 71792), (224, 57049), (356, 35896), (623, 20512), (641, 19936), (712, 17948), (1246, 10256), (1282, 9968), (1424, 8974), (2492, 5128), (2564, 4984), (2848, 4487)]