19505750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 41041728

約数和(自身を除く): 21535978

約数列:

[1, 2, 5, 10, 11, 22, 25, 41, 50, 55, 82, 110, 125, 173, 205, 250, 275, 346, 410, 451, 550, 865, 902, 1025, 1375, 1730, 1903, 2050, 2255, 2750, 3806, 4325, 4510, 5125, 7093, 8650, 9515, 10250, 11275, 14186, 19030, 21625, 22550, 35465, 43250, 47575, 56375, 70930, 78023, 95150, 112750, 156046, 177325, 237875, 354650, 390115, 475750, 780230, 886625, 1773250, 1950575, 3901150, 9752875, 19505750]

約数ペア:

[(1, 19505750), (2, 9752875), (5, 3901150), (10, 1950575), (11, 1773250), (22, 886625), (25, 780230), (41, 475750), (50, 390115), (55, 354650), (82, 237875), (110, 177325), (125, 156046), (173, 112750), (205, 95150), (250, 78023), (275, 70930), (346, 56375), (410, 47575), (451, 43250), (550, 35465), (865, 22550), (902, 21625), (1025, 19030), (1375, 14186), (1730, 11275), (1903, 10250), (2050, 9515), (2255, 8650), (2750, 7093), (3806, 5125), (4325, 4510)]