2009496620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{54517}}^1$

素因数の和:54642

約数の個数: 48

約数和(自身を含む): 4487921760

約数和(自身を除く): 2478425140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1843, 1940, 3686, 7372, 9215, 18430, 36860, 54517, 109034, 218068, 272585, 545170, 1035823, 1090340, 2071646, 4143292, 5179115, 5288149, 10358230, 10576298, 20716460, 21152596, 26440745, 52881490, 100474831, 105762980, 200949662, 401899324, 502374155, 1004748310, 2009496620]

約数ペア:

[(1, 2009496620), (2, 1004748310), (4, 502374155), (5, 401899324), (10, 200949662), (19, 105762980), (20, 100474831), (38, 52881490), (76, 26440745), (95, 21152596), (97, 20716460), (190, 10576298), (194, 10358230), (380, 5288149), (388, 5179115), (485, 4143292), (970, 2071646), (1843, 1090340), (1940, 1035823), (3686, 545170), (7372, 272585), (9215, 218068), (18430, 109034), (36860, 54517)]