105128500

素因数分解:

$2^2\times 5^3\times {\mathrm{210257}}^1$

素因数の和:210276

約数の個数: 24

約数和(自身を含む): 229601736

約数和(自身を除く): 124473236

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 210257, 420514, 841028, 1051285, 2102570, 4205140, 5256425, 10512850, 21025700, 26282125, 52564250, 105128500]

約数ペア:

[(1, 105128500), (2, 52564250), (4, 26282125), (5, 21025700), (10, 10512850), (20, 5256425), (25, 4205140), (50, 2102570), (100, 1051285), (125, 841028), (250, 420514), (500, 210257)]