87909920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11213}}^1$

素因数の和:11242

約数の個数: 72

約数和(自身を含む): 241616844

約数和(自身を除く): 153706924

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, 11213, 22426, 44852, 56065, 78491, 89704, 112130, 156982, 179408, 224260, 313964, 358816, 392455, 448520, 549437, 627928, 784910, 897040, 1098874, 1255856, 1569820, 1794080, 2197748, 2511712, 2747185, 3139640, 4395496, 5494370, 6279280, 8790992, 10988740, 12558560, 17581984, 21977480, 43954960, 87909920]

約数ペア:

[(1, 87909920), (2, 43954960), (4, 21977480), (5, 17581984), (7, 12558560), (8, 10988740), (10, 8790992), (14, 6279280), (16, 5494370), (20, 4395496), (28, 3139640), (32, 2747185), (35, 2511712), (40, 2197748), (49, 1794080), (56, 1569820), (70, 1255856), (80, 1098874), (98, 897040), (112, 784910), (140, 627928), (160, 549437), (196, 448520), (224, 392455), (245, 358816), (280, 313964), (392, 224260), (490, 179408), (560, 156982), (784, 112130), (980, 89704), (1120, 78491), (1568, 56065), (1960, 44852), (3920, 22426), (7840, 11213)]