8040260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4517}}^1$

素因数の和:4615

約数の個数: 24

約数和(自身を含む): 17078040

約数和(自身を除く): 9037780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 4517, 9034, 18068, 22585, 45170, 90340, 402013, 804026, 1608052, 2010065, 4020130, 8040260]

約数ペア:

[(1, 8040260), (2, 4020130), (4, 2010065), (5, 1608052), (10, 804026), (20, 402013), (89, 90340), (178, 45170), (356, 22585), (445, 18068), (890, 9034), (1780, 4517)]