19387220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 43256640

約数和(自身を除く): 23869420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 163, 190, 313, 326, 380, 626, 652, 815, 1252, 1565, 1630, 3097, 3130, 3260, 5947, 6194, 6260, 11894, 12388, 15485, 23788, 29735, 30970, 51019, 59470, 61940, 102038, 118940, 204076, 255095, 510190, 969361, 1020380, 1938722, 3877444, 4846805, 9693610, 19387220]

約数ペア:

[(1, 19387220), (2, 9693610), (4, 4846805), (5, 3877444), (10, 1938722), (19, 1020380), (20, 969361), (38, 510190), (76, 255095), (95, 204076), (163, 118940), (190, 102038), (313, 61940), (326, 59470), (380, 51019), (626, 30970), (652, 29735), (815, 23788), (1252, 15485), (1565, 12388), (1630, 11894), (3097, 6260), (3130, 6194), (3260, 5947)]