2005678180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{971}}^1$

素因数の和:1261

約数の個数: 96

約数和(自身を含む): 4732318080

約数和(自身を除く): 2726639900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 229, 410, 451, 458, 820, 902, 916, 971, 1145, 1804, 1942, 2255, 2290, 2519, 3884, 4510, 4580, 4855, 5038, 9020, 9389, 9710, 10076, 10681, 12595, 18778, 19420, 21362, 25190, 37556, 39811, 42724, 46945, 50380, 53405, 79622, 93890, 103279, 106810, 159244, 187780, 199055, 206558, 213620, 222359, 398110, 413116, 437921, 444718, 516395, 796220, 875842, 889436, 1032790, 1111795, 1751684, 2065580, 2189605, 2223590, 2445949, 4379210, 4447180, 4891898, 8758420, 9116719, 9783796, 12229745, 18233438, 24459490, 36466876, 45583595, 48918980, 91167190, 100283909, 182334380, 200567818, 401135636, 501419545, 1002839090, 2005678180]

約数ペア:

[(1, 2005678180), (2, 1002839090), (4, 501419545), (5, 401135636), (10, 200567818), (11, 182334380), (20, 100283909), (22, 91167190), (41, 48918980), (44, 45583595), (55, 36466876), (82, 24459490), (110, 18233438), (164, 12229745), (205, 9783796), (220, 9116719), (229, 8758420), (410, 4891898), (451, 4447180), (458, 4379210), (820, 2445949), (902, 2223590), (916, 2189605), (971, 2065580), (1145, 1751684), (1804, 1111795), (1942, 1032790), (2255, 889436), (2290, 875842), (2519, 796220), (3884, 516395), (4510, 444718), (4580, 437921), (4855, 413116), (5038, 398110), (9020, 222359), (9389, 213620), (9710, 206558), (10076, 199055), (10681, 187780), (12595, 159244), (18778, 106810), (19420, 103279), (21362, 93890), (25190, 79622), (37556, 53405), (39811, 50380), (42724, 46945)]