64850740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{36433}}^1$

素因数の和:36531

約数の個数: 24

約数和(自身を含む): 137720520

約数和(自身を除く): 72869780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 36433, 72866, 145732, 182165, 364330, 728660, 3242537, 6485074, 12970148, 16212685, 32425370, 64850740]

約数ペア:

[(1, 64850740), (2, 32425370), (4, 16212685), (5, 12970148), (10, 6485074), (20, 3242537), (89, 728660), (178, 364330), (356, 182165), (445, 145732), (890, 72866), (1780, 36433)]