20161331320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1\times {\mathrm{2557}}^1$

素因数の和:2897

約数の個数: 128

約数和(自身を含む): 49893278400

約数和(自身を除く): 29731947080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 104, 118, 130, 236, 257, 260, 295, 472, 514, 520, 590, 767, 1028, 1180, 1285, 1534, 2056, 2360, 2557, 2570, 3068, 3341, 3835, 5114, 5140, 6136, 6682, 7670, 10228, 10280, 12785, 13364, 15163, 15340, 16705, 20456, 25570, 26728, 30326, 30680, 33241, 33410, 51140, 60652, 66482, 66820, 75815, 102280, 121304, 132964, 133640, 150863, 151630, 166205, 197119, 265928, 301726, 303260, 332410, 394238, 603452, 606520, 657149, 664820, 754315, 788476, 985595, 1206904, 1314298, 1329640, 1508630, 1576952, 1961219, 1971190, 2628596, 3017260, 3285745, 3922438, 3942380, 5257192, 6034520, 6571490, 7844876, 7884760, 8542937, 9806095, 13142980, 15689752, 17085874, 19612190, 26285960, 34171748, 38771791, 39224380, 42714685, 68343496, 77543582, 78448760, 85429370, 155087164, 170858740, 193858955, 310174328, 341717480, 387717910, 504033283, 775435820, 1008066566, 1550871640, 2016133132, 2520166415, 4032266264, 5040332830, 10080665660, 20161331320]

約数ペア:

[(1, 20161331320), (2, 10080665660), (4, 5040332830), (5, 4032266264), (8, 2520166415), (10, 2016133132), (13, 1550871640), (20, 1008066566), (26, 775435820), (40, 504033283), (52, 387717910), (59, 341717480), (65, 310174328), (104, 193858955), (118, 170858740), (130, 155087164), (236, 85429370), (257, 78448760), (260, 77543582), (295, 68343496), (472, 42714685), (514, 39224380), (520, 38771791), (590, 34171748), (767, 26285960), (1028, 19612190), (1180, 17085874), (1285, 15689752), (1534, 13142980), (2056, 9806095), (2360, 8542937), (2557, 7884760), (2570, 7844876), (3068, 6571490), (3341, 6034520), (3835, 5257192), (5114, 3942380), (5140, 3922438), (6136, 3285745), (6682, 3017260), (7670, 2628596), (10228, 1971190), (10280, 1961219), (12785, 1576952), (13364, 1508630), (15163, 1329640), (15340, 1314298), (16705, 1206904), (20456, 985595), (25570, 788476), (26728, 754315), (30326, 664820), (30680, 657149), (33241, 606520), (33410, 603452), (51140, 394238), (60652, 332410), (66482, 303260), (66820, 301726), (75815, 265928), (102280, 197119), (121304, 166205), (132964, 151630), (133640, 150863)]