28980560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7393}}^1$

素因数の和:7420

約数の個数: 60

約数和(自身を含む): 78391188

約数和(自身を除く): 49410628

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, 7393, 14786, 29572, 36965, 51751, 59144, 73930, 103502, 118288, 147860, 207004, 258755, 295720, 362257, 414008, 517510, 591440, 724514, 828016, 1035020, 1449028, 1811285, 2070040, 2898056, 3622570, 4140080, 5796112, 7245140, 14490280, 28980560]

約数ペア:

[(1, 28980560), (2, 14490280), (4, 7245140), (5, 5796112), (7, 4140080), (8, 3622570), (10, 2898056), (14, 2070040), (16, 1811285), (20, 1449028), (28, 1035020), (35, 828016), (40, 724514), (49, 591440), (56, 517510), (70, 414008), (80, 362257), (98, 295720), (112, 258755), (140, 207004), (196, 147860), (245, 118288), (280, 103502), (392, 73930), (490, 59144), (560, 51751), (784, 36965), (980, 29572), (1960, 14786), (3920, 7393)]