68309920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{8713}}^1$

素因数の和:8742

約数の個数: 72

約数和(自身を含む): 187751844

約数和(自身を除く): 119441924

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 8713, 17426, 34852, 43565, 60991, 69704, 87130, 121982, 139408, 174260, 243964, 278816, 304955, 348520, 426937, 487928, 609910, 697040, 853874, 975856, 1219820, 1394080, 1707748, 1951712, 2134685, 2439640, 3415496, 4269370, 4879280, 6830992, 8538740, 9758560, 13661984, 17077480, 34154960, 68309920]

約数ペア:

[(1, 68309920), (2, 34154960), (4, 17077480), (5, 13661984), (7, 9758560), (8, 8538740), (10, 6830992), (14, 4879280), (16, 4269370), (20, 3415496), (28, 2439640), (32, 2134685), (35, 1951712), (40, 1707748), (49, 1394080), (56, 1219820), (70, 975856), (80, 853874), (98, 697040), (112, 609910), (140, 487928), (160, 426937), (196, 348520), (224, 304955), (245, 278816), (280, 243964), (392, 174260), (490, 139408), (560, 121982), (784, 87130), (980, 69704), (1120, 60991), (1568, 43565), (1960, 34852), (3920, 17426), (7840, 8713)]