2007178540

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{204397}}^1$

素因数の和:204897

約数の個数: 24

約数和(自身を含む): 4223680272

約数和(自身を除く): 2216501732

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 204397, 408794, 817588, 1021985, 2043970, 4087940, 100358927, 200717854, 401435708, 501794635, 1003589270, 2007178540]

約数ペア:

[(1, 2007178540), (2, 1003589270), (4, 501794635), (5, 401435708), (10, 200717854), (20, 100358927), (491, 4087940), (982, 2043970), (1964, 1021985), (2455, 817588), (4910, 408794), (9820, 204397)]