28381360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{859}}^1$

素因数の和:938

約数の個数: 80

約数和(自身を含む): 76780800

約数和(自身を除く): 48399440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 59, 70, 80, 112, 118, 140, 236, 280, 295, 413, 472, 560, 590, 826, 859, 944, 1180, 1652, 1718, 2065, 2360, 3304, 3436, 4130, 4295, 4720, 6013, 6608, 6872, 8260, 8590, 12026, 13744, 16520, 17180, 24052, 30065, 33040, 34360, 48104, 50681, 60130, 68720, 96208, 101362, 120260, 202724, 240520, 253405, 354767, 405448, 481040, 506810, 709534, 810896, 1013620, 1419068, 1773835, 2027240, 2838136, 3547670, 4054480, 5676272, 7095340, 14190680, 28381360]

約数ペア:

[(1, 28381360), (2, 14190680), (4, 7095340), (5, 5676272), (7, 4054480), (8, 3547670), (10, 2838136), (14, 2027240), (16, 1773835), (20, 1419068), (28, 1013620), (35, 810896), (40, 709534), (56, 506810), (59, 481040), (70, 405448), (80, 354767), (112, 253405), (118, 240520), (140, 202724), (236, 120260), (280, 101362), (295, 96208), (413, 68720), (472, 60130), (560, 50681), (590, 48104), (826, 34360), (859, 33040), (944, 30065), (1180, 24052), (1652, 17180), (1718, 16520), (2065, 13744), (2360, 12026), (3304, 8590), (3436, 8260), (4130, 6872), (4295, 6608), (4720, 6013)]