51440980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7963}}^1$

素因数の和:8008

約数の個数: 48

約数和(自身を含む): 120415680

約数和(自身を除く): 68974700

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 7963, 15926, 31852, 39815, 79630, 135371, 151297, 159260, 270742, 302594, 541484, 605188, 676855, 756485, 1353710, 1512970, 2572049, 2707420, 3025940, 5144098, 10288196, 12860245, 25720490, 51440980]

約数ペア:

[(1, 51440980), (2, 25720490), (4, 12860245), (5, 10288196), (10, 5144098), (17, 3025940), (19, 2707420), (20, 2572049), (34, 1512970), (38, 1353710), (68, 756485), (76, 676855), (85, 605188), (95, 541484), (170, 302594), (190, 270742), (323, 159260), (340, 151297), (380, 135371), (646, 79630), (1292, 39815), (1615, 31852), (3230, 15926), (6460, 7963)]