19223875

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 48

約数和(自身を含む): 27885312

約数和(自身を除く): 8661437

約数列:

[1, 5, 11, 25, 31, 41, 55, 121, 125, 155, 205, 275, 341, 451, 605, 775, 1025, 1271, 1375, 1705, 2255, 3025, 3751, 3875, 4961, 5125, 6355, 8525, 11275, 13981, 15125, 18755, 24805, 31775, 42625, 56375, 69905, 93775, 124025, 153791, 158875, 349525, 468875, 620125, 768955, 1747625, 3844775, 19223875]

約数ペア:

[(1, 19223875), (5, 3844775), (11, 1747625), (25, 768955), (31, 620125), (41, 468875), (55, 349525), (121, 158875), (125, 153791), (155, 124025), (205, 93775), (275, 69905), (341, 56375), (451, 42625), (605, 31775), (775, 24805), (1025, 18755), (1271, 15125), (1375, 13981), (1705, 11275), (2255, 8525), (3025, 6355), (3751, 5125), (3875, 4961)]