20212308760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{5807}}^1$

素因数の和:6257

約数の個数: 128

約数和(自身を含む): 53794160640

約数和(自身を除く): 33581851880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 401, 434, 620, 802, 868, 1085, 1240, 1604, 1736, 2005, 2170, 2807, 3208, 4010, 4340, 5614, 5807, 8020, 8680, 11228, 11614, 12431, 14035, 16040, 22456, 23228, 24862, 28070, 29035, 40649, 46456, 49724, 56140, 58070, 62155, 81298, 87017, 99448, 112280, 116140, 124310, 162596, 174034, 180017, 203245, 232280, 248620, 325192, 348068, 360034, 406490, 435085, 497240, 696136, 720068, 812980, 870170, 900085, 1260119, 1440136, 1625960, 1740340, 1800170, 2328607, 2520238, 3480680, 3600340, 4657214, 5040476, 6300595, 7200680, 9314428, 10080952, 11643035, 12601190, 16300249, 18628856, 23286070, 25202380, 32600498, 46572140, 50404760, 65200996, 72186817, 81501245, 93144280, 130401992, 144373634, 163002490, 288747268, 326004980, 360934085, 505307719, 577494536, 652009960, 721868170, 1010615438, 1443736340, 2021230876, 2526538595, 2887472680, 4042461752, 5053077190, 10106154380, 20212308760]

約数ペア:

[(1, 20212308760), (2, 10106154380), (4, 5053077190), (5, 4042461752), (7, 2887472680), (8, 2526538595), (10, 2021230876), (14, 1443736340), (20, 1010615438), (28, 721868170), (31, 652009960), (35, 577494536), (40, 505307719), (56, 360934085), (62, 326004980), (70, 288747268), (124, 163002490), (140, 144373634), (155, 130401992), (217, 93144280), (248, 81501245), (280, 72186817), (310, 65200996), (401, 50404760), (434, 46572140), (620, 32600498), (802, 25202380), (868, 23286070), (1085, 18628856), (1240, 16300249), (1604, 12601190), (1736, 11643035), (2005, 10080952), (2170, 9314428), (2807, 7200680), (3208, 6300595), (4010, 5040476), (4340, 4657214), (5614, 3600340), (5807, 3480680), (8020, 2520238), (8680, 2328607), (11228, 1800170), (11614, 1740340), (12431, 1625960), (14035, 1440136), (16040, 1260119), (22456, 900085), (23228, 870170), (24862, 812980), (28070, 720068), (29035, 696136), (40649, 497240), (46456, 435085), (49724, 406490), (56140, 360034), (58070, 348068), (62155, 325192), (81298, 248620), (87017, 232280), (99448, 203245), (112280, 180017), (116140, 174034), (124310, 162596)]