20173727565

素因数分解:

$3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{20323}}^1$

素因数の和:20405

約数の個数: 96

約数和(自身を含む): 39061102080

約数和(自身を除く): 18887374515

約数列:

[1, 3, 5, 9, 15, 19, 27, 43, 45, 57, 81, 95, 129, 135, 171, 215, 243, 285, 387, 405, 513, 645, 817, 855, 1161, 1215, 1539, 1935, 2451, 2565, 3483, 4085, 4617, 5805, 7353, 7695, 10449, 12255, 17415, 20323, 22059, 23085, 36765, 52245, 60969, 66177, 101615, 110295, 182907, 198531, 304845, 330885, 386137, 548721, 873889, 914535, 992655, 1158411, 1646163, 1930685, 2621667, 2743605, 3475233, 4369445, 4938489, 5792055, 7865001, 8230815, 10425699, 13108335, 16603891, 17376165, 23595003, 24692445, 31277097, 39325005, 49811673, 52128495, 70785009, 83019455, 93831291, 117975015, 149435019, 156385485, 212355027, 249058365, 353925045, 448305057, 469156455, 747175095, 1061775135, 1344915171, 2241525285, 4034745513, 6724575855, 20173727565]

約数ペア:

[(1, 20173727565), (3, 6724575855), (5, 4034745513), (9, 2241525285), (15, 1344915171), (19, 1061775135), (27, 747175095), (43, 469156455), (45, 448305057), (57, 353925045), (81, 249058365), (95, 212355027), (129, 156385485), (135, 149435019), (171, 117975015), (215, 93831291), (243, 83019455), (285, 70785009), (387, 52128495), (405, 49811673), (513, 39325005), (645, 31277097), (817, 24692445), (855, 23595003), (1161, 17376165), (1215, 16603891), (1539, 13108335), (1935, 10425699), (2451, 8230815), (2565, 7865001), (3483, 5792055), (4085, 4938489), (4617, 4369445), (5805, 3475233), (7353, 2743605), (7695, 2621667), (10449, 1930685), (12255, 1646163), (17415, 1158411), (20323, 992655), (22059, 914535), (23085, 873889), (36765, 548721), (52245, 386137), (60969, 330885), (66177, 304845), (101615, 198531), (110295, 182907)]