290781540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{230779}}^1$

素因数の和:230801

約数の個数: 72

約数和(自身を含む): 1008047040

約数和(自身を除く): 717265500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 230779, 461558, 692337, 923116, 1153895, 1384674, 1615453, 2077011, 2307790, 2769348, 3230906, 3461685, 4154022, 4615580, 4846359, 6461812, 6923370, 8077265, 8308044, 9692718, 10385055, 13846740, 14539077, 16154530, 19385436, 20770110, 24231795, 29078154, 32309060, 41540220, 48463590, 58156308, 72695385, 96927180, 145390770, 290781540]

約数ペア:

[(1, 290781540), (2, 145390770), (3, 96927180), (4, 72695385), (5, 58156308), (6, 48463590), (7, 41540220), (9, 32309060), (10, 29078154), (12, 24231795), (14, 20770110), (15, 19385436), (18, 16154530), (20, 14539077), (21, 13846740), (28, 10385055), (30, 9692718), (35, 8308044), (36, 8077265), (42, 6923370), (45, 6461812), (60, 4846359), (63, 4615580), (70, 4154022), (84, 3461685), (90, 3230906), (105, 2769348), (126, 2307790), (140, 2077011), (180, 1615453), (210, 1384674), (252, 1153895), (315, 923116), (420, 692337), (630, 461558), (1260, 230779)]