40122980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22541}}^1$

素因数の和:22639

約数の個数: 24

約数和(自身を含む): 85208760

約数和(自身を除く): 45085780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 22541, 45082, 90164, 112705, 225410, 450820, 2006149, 4012298, 8024596, 10030745, 20061490, 40122980]

約数ペア:

[(1, 40122980), (2, 20061490), (4, 10030745), (5, 8024596), (10, 4012298), (20, 2006149), (89, 450820), (178, 225410), (356, 112705), (445, 90164), (890, 45082), (1780, 22541)]