20748868728

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{21401}}^1$

素因数の和:21645

約数の個数: 128

約数和(自身を含む): 61637760000

約数和(自身を除く): 40888891272

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 29, 42, 56, 58, 84, 87, 116, 168, 174, 199, 203, 232, 348, 398, 406, 597, 609, 696, 796, 812, 1194, 1218, 1393, 1592, 1624, 2388, 2436, 2786, 4179, 4776, 4872, 5572, 5771, 8358, 11144, 11542, 16716, 17313, 21401, 23084, 33432, 34626, 40397, 42802, 46168, 64203, 69252, 80794, 85604, 121191, 128406, 138504, 149807, 161588, 171208, 242382, 256812, 299614, 323176, 449421, 484764, 513624, 599228, 620629, 898842, 969528, 1198456, 1241258, 1797684, 1861887, 2482516, 3595368, 3723774, 4258799, 4344403, 4965032, 7447548, 8517598, 8688806, 12776397, 13033209, 14895096, 17035196, 17377612, 25552794, 26066418, 29811593, 34070392, 34755224, 51105588, 52132836, 59623186, 89434779, 102211176, 104265672, 119246372, 123505171, 178869558, 238492744, 247010342, 357739116, 370515513, 494020684, 715478232, 741031026, 864536197, 988041368, 1482062052, 1729072394, 2593608591, 2964124104, 3458144788, 5187217182, 6916289576, 10374434364, 20748868728]

約数ペア:

[(1, 20748868728), (2, 10374434364), (3, 6916289576), (4, 5187217182), (6, 3458144788), (7, 2964124104), (8, 2593608591), (12, 1729072394), (14, 1482062052), (21, 988041368), (24, 864536197), (28, 741031026), (29, 715478232), (42, 494020684), (56, 370515513), (58, 357739116), (84, 247010342), (87, 238492744), (116, 178869558), (168, 123505171), (174, 119246372), (199, 104265672), (203, 102211176), (232, 89434779), (348, 59623186), (398, 52132836), (406, 51105588), (597, 34755224), (609, 34070392), (696, 29811593), (796, 26066418), (812, 25552794), (1194, 17377612), (1218, 17035196), (1393, 14895096), (1592, 13033209), (1624, 12776397), (2388, 8688806), (2436, 8517598), (2786, 7447548), (4179, 4965032), (4776, 4344403), (4872, 4258799), (5572, 3723774), (5771, 3595368), (8358, 2482516), (11144, 1861887), (11542, 1797684), (16716, 1241258), (17313, 1198456), (21401, 969528), (23084, 898842), (33432, 620629), (34626, 599228), (40397, 513624), (42802, 484764), (46168, 449421), (64203, 323176), (69252, 299614), (80794, 256812), (85604, 242382), (121191, 171208), (128406, 161588), (138504, 149807)]