16080520

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4517}}^1$

素因数の和:4617

約数の個数: 32

約数和(自身を含む): 36595800

約数和(自身を除く): 20515280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 4517, 9034, 18068, 22585, 36136, 45170, 90340, 180680, 402013, 804026, 1608052, 2010065, 3216104, 4020130, 8040260, 16080520]

約数ペア:

[(1, 16080520), (2, 8040260), (4, 4020130), (5, 3216104), (8, 2010065), (10, 1608052), (20, 804026), (40, 402013), (89, 180680), (178, 90340), (356, 45170), (445, 36136), (712, 22585), (890, 18068), (1780, 9034), (3560, 4517)]