20778868635

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{1877}}^1$

素因数の和:2121

約数の個数: 128

約数和(自身を含む): 41538355200

約数和(自身を除く): 20759486565

約数列:

[1, 3, 5, 7, 15, 19, 21, 31, 35, 57, 93, 95, 105, 133, 155, 179, 217, 285, 399, 465, 537, 589, 651, 665, 895, 1085, 1253, 1767, 1877, 1995, 2685, 2945, 3255, 3401, 3759, 4123, 5549, 5631, 6265, 8835, 9385, 10203, 12369, 13139, 16647, 17005, 18795, 20615, 23807, 27745, 28155, 35663, 38843, 39417, 51015, 58187, 61845, 65695, 71421, 83235, 105431, 106989, 116529, 119035, 174561, 178315, 194215, 197085, 249641, 290935, 316293, 335983, 357105, 407309, 527155, 534945, 582645, 738017, 748923, 872805, 1007949, 1105553, 1221927, 1248205, 1581465, 1679915, 2036545, 2214051, 2351881, 3316659, 3690085, 3744615, 5039745, 5527765, 6109635, 6383677, 7055643, 7738871, 10415473, 11070255, 11759405, 16583295, 19151031, 23216613, 31246419, 31918385, 35278215, 38694355, 44685739, 52077365, 72908311, 95755155, 116083065, 134057217, 156232095, 197893987, 218724933, 223428695, 364541555, 593681961, 670286085, 989469935, 1093624665, 1385257909, 2968409805, 4155773727, 6926289545, 20778868635]

約数ペア:

[(1, 20778868635), (3, 6926289545), (5, 4155773727), (7, 2968409805), (15, 1385257909), (19, 1093624665), (21, 989469935), (31, 670286085), (35, 593681961), (57, 364541555), (93, 223428695), (95, 218724933), (105, 197893987), (133, 156232095), (155, 134057217), (179, 116083065), (217, 95755155), (285, 72908311), (399, 52077365), (465, 44685739), (537, 38694355), (589, 35278215), (651, 31918385), (665, 31246419), (895, 23216613), (1085, 19151031), (1253, 16583295), (1767, 11759405), (1877, 11070255), (1995, 10415473), (2685, 7738871), (2945, 7055643), (3255, 6383677), (3401, 6109635), (3759, 5527765), (4123, 5039745), (5549, 3744615), (5631, 3690085), (6265, 3316659), (8835, 2351881), (9385, 2214051), (10203, 2036545), (12369, 1679915), (13139, 1581465), (16647, 1248205), (17005, 1221927), (18795, 1105553), (20615, 1007949), (23807, 872805), (27745, 748923), (28155, 738017), (35663, 582645), (38843, 534945), (39417, 527155), (51015, 407309), (58187, 357105), (61845, 335983), (65695, 316293), (71421, 290935), (83235, 249641), (105431, 197085), (106989, 194215), (116529, 178315), (119035, 174561)]