194647820

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 415134720

約数和(自身を除く): 220486900

約数列:

[1, 2, 4, 5, 10, 20, 127, 197, 254, 389, 394, 508, 635, 778, 788, 985, 1270, 1556, 1945, 1970, 2540, 3890, 3940, 7780, 25019, 49403, 50038, 76633, 98806, 100076, 125095, 153266, 197612, 247015, 250190, 306532, 383165, 494030, 500380, 766330, 988060, 1532660, 9732391, 19464782, 38929564, 48661955, 97323910, 194647820]

約数ペア:

[(1, 194647820), (2, 97323910), (4, 48661955), (5, 38929564), (10, 19464782), (20, 9732391), (127, 1532660), (197, 988060), (254, 766330), (389, 500380), (394, 494030), (508, 383165), (635, 306532), (778, 250190), (788, 247015), (985, 197612), (1270, 153266), (1556, 125095), (1945, 100076), (1970, 98806), (2540, 76633), (3890, 50038), (3940, 49403), (7780, 25019)]