990016920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{28351}}^1$

素因数の和:28465

約数の個数: 96

約数和(自身を含む): 3250840320

約数和(自身を除く): 2260823400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 97, 120, 180, 194, 291, 360, 388, 485, 582, 776, 873, 970, 1164, 1455, 1746, 1940, 2328, 2910, 3492, 3880, 4365, 5820, 6984, 8730, 11640, 17460, 28351, 34920, 56702, 85053, 113404, 141755, 170106, 226808, 255159, 283510, 340212, 425265, 510318, 567020, 680424, 850530, 1020636, 1134040, 1275795, 1701060, 2041272, 2551590, 2750047, 3402120, 5103180, 5500094, 8250141, 10206360, 11000188, 13750235, 16500282, 22000376, 24750423, 27500470, 33000564, 41250705, 49500846, 55000940, 66001128, 82501410, 99001692, 110001880, 123752115, 165002820, 198003384, 247504230, 330005640, 495008460, 990016920]

約数ペア:

[(1, 990016920), (2, 495008460), (3, 330005640), (4, 247504230), (5, 198003384), (6, 165002820), (8, 123752115), (9, 110001880), (10, 99001692), (12, 82501410), (15, 66001128), (18, 55000940), (20, 49500846), (24, 41250705), (30, 33000564), (36, 27500470), (40, 24750423), (45, 22000376), (60, 16500282), (72, 13750235), (90, 11000188), (97, 10206360), (120, 8250141), (180, 5500094), (194, 5103180), (291, 3402120), (360, 2750047), (388, 2551590), (485, 2041272), (582, 1701060), (776, 1275795), (873, 1134040), (970, 1020636), (1164, 850530), (1455, 680424), (1746, 567020), (1940, 510318), (2328, 425265), (2910, 340212), (3492, 283510), (3880, 255159), (4365, 226808), (5820, 170106), (6984, 141755), (8730, 113404), (11640, 85053), (17460, 56702), (28351, 34920)]