258090640

素因数分解:

$2^4\times 5^1\times {\mathrm{3226133}}^1$

素因数の和:3226146

約数の個数: 20

約数和(自身を含む): 600060924

約数和(自身を除く): 341970284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3226133, 6452266, 12904532, 16130665, 25809064, 32261330, 51618128, 64522660, 129045320, 258090640]

約数ペア:

[(1, 258090640), (2, 129045320), (4, 64522660), (5, 51618128), (8, 32261330), (10, 25809064), (16, 16130665), (20, 12904532), (40, 6452266), (80, 3226133)]