20731635575

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1483}}^1$

素因数の和:1681

約数の個数: 96

約数和(自身を含む): 32221937664

約数和(自身を除く): 11490302089

約数列:

[1, 5, 7, 17, 25, 35, 37, 85, 119, 127, 175, 185, 259, 425, 595, 629, 635, 889, 925, 1295, 1483, 2159, 2975, 3145, 3175, 4403, 4445, 4699, 6475, 7415, 10381, 10795, 15113, 15725, 22015, 22225, 23495, 25211, 32893, 37075, 51905, 53975, 54871, 75565, 79883, 110075, 117475, 126055, 164465, 176477, 188341, 259525, 274355, 377825, 384097, 399415, 559181, 630275, 822325, 882385, 932807, 941705, 1318387, 1371775, 1920485, 1997075, 2795905, 3201797, 4411925, 4664035, 4708525, 6529649, 6591935, 6968617, 9602425, 13979525, 16008985, 22412579, 23320175, 32648245, 32959675, 34843085, 48780319, 80044925, 112062895, 118466489, 163241225, 174215425, 243901595, 560314475, 592332445, 829265423, 1219507975, 2961662225, 4146327115, 20731635575]

約数ペア:

[(1, 20731635575), (5, 4146327115), (7, 2961662225), (17, 1219507975), (25, 829265423), (35, 592332445), (37, 560314475), (85, 243901595), (119, 174215425), (127, 163241225), (175, 118466489), (185, 112062895), (259, 80044925), (425, 48780319), (595, 34843085), (629, 32959675), (635, 32648245), (889, 23320175), (925, 22412579), (1295, 16008985), (1483, 13979525), (2159, 9602425), (2975, 6968617), (3145, 6591935), (3175, 6529649), (4403, 4708525), (4445, 4664035), (4699, 4411925), (6475, 3201797), (7415, 2795905), (10381, 1997075), (10795, 1920485), (15113, 1371775), (15725, 1318387), (22015, 941705), (22225, 932807), (23495, 882385), (25211, 822325), (32893, 630275), (37075, 559181), (51905, 399415), (53975, 384097), (54871, 377825), (75565, 274355), (79883, 259525), (110075, 188341), (117475, 176477), (126055, 164465)]