1555120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2777}}^1$

素因数の和:2797

約数の個数: 40

約数和(自身を含む): 4133664

約数和(自身を除く): 2578544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2777, 5554, 11108, 13885, 19439, 22216, 27770, 38878, 44432, 55540, 77756, 97195, 111080, 155512, 194390, 222160, 311024, 388780, 777560, 1555120]

約数ペア:

[(1, 1555120), (2, 777560), (4, 388780), (5, 311024), (7, 222160), (8, 194390), (10, 155512), (14, 111080), (16, 97195), (20, 77756), (28, 55540), (35, 44432), (40, 38878), (56, 27770), (70, 22216), (80, 19439), (112, 13885), (140, 11108), (280, 5554), (560, 2777)]