1561060

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{877}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 3318840

約数和(自身を除く): 1757780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 877, 890, 1754, 1780, 3508, 4385, 8770, 17540, 78053, 156106, 312212, 390265, 780530, 1561060]

約数ペア:

[(1, 1561060), (2, 780530), (4, 390265), (5, 312212), (10, 156106), (20, 78053), (89, 17540), (178, 8770), (356, 4385), (445, 3508), (877, 1780), (890, 1754)]