201990904720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{293899}}^1$

素因数の和:294005

約数の個数: 120

約数和(自身を含む): 523475870400

約数和(自身を除く): 321484965680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 121, 142, 176, 220, 242, 284, 355, 440, 484, 568, 605, 710, 781, 880, 968, 1136, 1210, 1420, 1562, 1936, 2420, 2840, 3124, 3905, 4840, 5680, 6248, 7810, 8591, 9680, 12496, 15620, 17182, 31240, 34364, 42955, 62480, 68728, 85910, 137456, 171820, 293899, 343640, 587798, 687280, 1175596, 1469495, 2351192, 2938990, 3232889, 4702384, 5877980, 6465778, 11755960, 12931556, 16164445, 20866829, 23511920, 25863112, 32328890, 35561779, 41733658, 51726224, 64657780, 71123558, 83467316, 104334145, 129315560, 142247116, 166934632, 177808895, 208668290, 229535119, 258631120, 284494232, 333869264, 355617790, 417336580, 459070238, 568988464, 711235580, 834673160, 918140476, 1147675595, 1422471160, 1669346320, 1836280952, 2295351190, 2524886309, 2844942320, 3672561904, 4590702380, 5049772618, 9181404760, 10099545236, 12624431545, 18362809520, 20199090472, 25248863090, 40398180944, 50497726180, 100995452360, 201990904720]

約数ペア:

[(1, 201990904720), (2, 100995452360), (4, 50497726180), (5, 40398180944), (8, 25248863090), (10, 20199090472), (11, 18362809520), (16, 12624431545), (20, 10099545236), (22, 9181404760), (40, 5049772618), (44, 4590702380), (55, 3672561904), (71, 2844942320), (80, 2524886309), (88, 2295351190), (110, 1836280952), (121, 1669346320), (142, 1422471160), (176, 1147675595), (220, 918140476), (242, 834673160), (284, 711235580), (355, 568988464), (440, 459070238), (484, 417336580), (568, 355617790), (605, 333869264), (710, 284494232), (781, 258631120), (880, 229535119), (968, 208668290), (1136, 177808895), (1210, 166934632), (1420, 142247116), (1562, 129315560), (1936, 104334145), (2420, 83467316), (2840, 71123558), (3124, 64657780), (3905, 51726224), (4840, 41733658), (5680, 35561779), (6248, 32328890), (7810, 25863112), (8591, 23511920), (9680, 20866829), (12496, 16164445), (15620, 12931556), (17182, 11755960), (31240, 6465778), (34364, 5877980), (42955, 4702384), (62480, 3232889), (68728, 2938990), (85910, 2351192), (137456, 1469495), (171820, 1175596), (293899, 687280), (343640, 587798)]