1340080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2393}}^1$

素因数の和:2413

約数の個数: 40

約数和(自身を含む): 3562272

約数和(自身を除く): 2222192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2393, 4786, 9572, 11965, 16751, 19144, 23930, 33502, 38288, 47860, 67004, 83755, 95720, 134008, 167510, 191440, 268016, 335020, 670040, 1340080]

約数ペア:

[(1, 1340080), (2, 670040), (4, 335020), (5, 268016), (7, 191440), (8, 167510), (10, 134008), (14, 95720), (16, 83755), (20, 67004), (28, 47860), (35, 38288), (40, 33502), (56, 23930), (70, 19144), (80, 16751), (112, 11965), (140, 9572), (280, 4786), (560, 2393)]