7221460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4057}}^1$

素因数の和:4155

約数の個数: 24

約数和(自身を含む): 15339240

約数和(自身を除く): 8117780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 4057, 8114, 16228, 20285, 40570, 81140, 361073, 722146, 1444292, 1805365, 3610730, 7221460]

約数ペア:

[(1, 7221460), (2, 3610730), (4, 1805365), (5, 1444292), (10, 722146), (20, 361073), (89, 81140), (178, 40570), (356, 20285), (445, 16228), (890, 8114), (1780, 4057)]