19507480

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2819}}^1$

素因数の和:3003

約数の個数: 32

約数和(自身を含む): 44161200

約数和(自身を除く): 24653720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2819, 3460, 5638, 6920, 11276, 14095, 22552, 28190, 56380, 112760, 487687, 975374, 1950748, 2438435, 3901496, 4876870, 9753740, 19507480]

約数ペア:

[(1, 19507480), (2, 9753740), (4, 4876870), (5, 3901496), (8, 2438435), (10, 1950748), (20, 975374), (40, 487687), (173, 112760), (346, 56380), (692, 28190), (865, 22552), (1384, 14095), (1730, 11276), (2819, 6920), (3460, 5638)]