18980491768

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{2711}}^1$

素因数の和:2901

約数の個数: 128

約数和(自身を含む): 43530854400

約数和(自身を除く): 24550362632

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 37, 56, 62, 74, 109, 124, 148, 217, 218, 248, 259, 296, 434, 436, 518, 763, 868, 872, 1036, 1147, 1526, 1736, 2072, 2294, 2711, 3052, 3379, 4033, 4588, 5422, 6104, 6758, 8029, 8066, 9176, 10844, 13516, 16058, 16132, 18977, 21688, 23653, 27032, 28231, 32116, 32264, 37954, 47306, 56462, 64232, 75908, 84041, 94612, 100307, 112924, 125023, 151816, 168082, 189224, 200614, 225848, 250046, 295499, 336164, 401228, 500092, 588287, 590998, 672328, 702149, 802456, 875161, 1000184, 1176574, 1181996, 1404298, 1750322, 2068493, 2353148, 2363992, 2808596, 3109517, 3500644, 4136986, 4706296, 5617192, 6219034, 7001288, 8273972, 9160469, 10933463, 12438068, 16547944, 18320938, 21766619, 21866926, 24876136, 36641876, 43533238, 43733852, 64123283, 73283752, 76534241, 87066476, 87467704, 128246566, 153068482, 174132952, 256493132, 306136964, 338937353, 512986264, 612273928, 677874706, 1355749412, 2372561471, 2711498824, 4745122942, 9490245884, 18980491768]

約数ペア:

[(1, 18980491768), (2, 9490245884), (4, 4745122942), (7, 2711498824), (8, 2372561471), (14, 1355749412), (28, 677874706), (31, 612273928), (37, 512986264), (56, 338937353), (62, 306136964), (74, 256493132), (109, 174132952), (124, 153068482), (148, 128246566), (217, 87467704), (218, 87066476), (248, 76534241), (259, 73283752), (296, 64123283), (434, 43733852), (436, 43533238), (518, 36641876), (763, 24876136), (868, 21866926), (872, 21766619), (1036, 18320938), (1147, 16547944), (1526, 12438068), (1736, 10933463), (2072, 9160469), (2294, 8273972), (2711, 7001288), (3052, 6219034), (3379, 5617192), (4033, 4706296), (4588, 4136986), (5422, 3500644), (6104, 3109517), (6758, 2808596), (8029, 2363992), (8066, 2353148), (9176, 2068493), (10844, 1750322), (13516, 1404298), (16058, 1181996), (16132, 1176574), (18977, 1000184), (21688, 875161), (23653, 802456), (27032, 702149), (28231, 672328), (32116, 590998), (32264, 588287), (37954, 500092), (47306, 401228), (56462, 336164), (64232, 295499), (75908, 250046), (84041, 225848), (94612, 200614), (100307, 189224), (112924, 168082), (125023, 151816)]