19585940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{701}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 45287424

約数和(自身を除く): 25701484

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 701, 1270, 1397, 1402, 2540, 2794, 2804, 3505, 5588, 6985, 7010, 7711, 13970, 14020, 15422, 27940, 30844, 38555, 77110, 89027, 154220, 178054, 356108, 445135, 890270, 979297, 1780540, 1958594, 3917188, 4896485, 9792970, 19585940]

約数ペア:

[(1, 19585940), (2, 9792970), (4, 4896485), (5, 3917188), (10, 1958594), (11, 1780540), (20, 979297), (22, 890270), (44, 445135), (55, 356108), (110, 178054), (127, 154220), (220, 89027), (254, 77110), (508, 38555), (635, 30844), (701, 27940), (1270, 15422), (1397, 14020), (1402, 13970), (2540, 7711), (2794, 7010), (2804, 6985), (3505, 5588)]