68988080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17599}}^1$

素因数の和:17626

約数の個数: 60

約数和(自身を含む): 186595200

約数和(自身を除く): 117607120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 17599, 35198, 70396, 87995, 123193, 140792, 175990, 246386, 281584, 351980, 492772, 615965, 703960, 862351, 985544, 1231930, 1407920, 1724702, 1971088, 2463860, 3449404, 4311755, 4927720, 6898808, 8623510, 9855440, 13797616, 17247020, 34494040, 68988080]

約数ペア:

[(1, 68988080), (2, 34494040), (4, 17247020), (5, 13797616), (7, 9855440), (8, 8623510), (10, 6898808), (14, 4927720), (16, 4311755), (20, 3449404), (28, 2463860), (35, 1971088), (40, 1724702), (49, 1407920), (56, 1231930), (70, 985544), (80, 862351), (98, 703960), (112, 615965), (140, 492772), (196, 351980), (245, 281584), (280, 246386), (392, 175990), (490, 140792), (560, 123193), (784, 87995), (980, 70396), (1960, 35198), (3920, 17599)]