28572860

素因数分解:

$2^2\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{1279}}^1$

素因数の和:2405

約数の個数: 24

約数和(自身を含む): 60103680

約数和(自身を除く): 31530820

約数列:

[1, 2, 4, 5, 10, 20, 1117, 1279, 2234, 2558, 4468, 5116, 5585, 6395, 11170, 12790, 22340, 25580, 1428643, 2857286, 5714572, 7143215, 14286430, 28572860]

約数ペア:

[(1, 28572860), (2, 14286430), (4, 7143215), (5, 5714572), (10, 2857286), (20, 1428643), (1117, 25580), (1279, 22340), (2234, 12790), (2558, 11170), (4468, 6395), (5116, 5585)]