20166766768

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1\times {\mathrm{1787}}^1$

素因数の和:2234

約数の個数: 80

約数和(自身を含む): 40972377600

約数和(自身を除く): 20805610832

約数列:

[1, 2, 4, 8, 16, 43, 47, 86, 94, 172, 188, 344, 349, 376, 688, 698, 752, 1396, 1787, 2021, 2792, 3574, 4042, 5584, 7148, 8084, 14296, 15007, 16168, 16403, 28592, 30014, 32336, 32806, 60028, 65612, 76841, 83989, 120056, 131224, 153682, 167978, 240112, 262448, 307364, 335956, 614728, 623663, 671912, 705329, 1229456, 1247326, 1343824, 1410658, 2494652, 2821316, 3611527, 4989304, 5642632, 7223054, 9978608, 11285264, 14446108, 26817509, 28892216, 29312161, 53635018, 57784432, 58624322, 107270036, 117248644, 214540072, 234497288, 429080144, 468994576, 1260422923, 2520845846, 5041691692, 10083383384, 20166766768]

約数ペア:

[(1, 20166766768), (2, 10083383384), (4, 5041691692), (8, 2520845846), (16, 1260422923), (43, 468994576), (47, 429080144), (86, 234497288), (94, 214540072), (172, 117248644), (188, 107270036), (344, 58624322), (349, 57784432), (376, 53635018), (688, 29312161), (698, 28892216), (752, 26817509), (1396, 14446108), (1787, 11285264), (2021, 9978608), (2792, 7223054), (3574, 5642632), (4042, 4989304), (5584, 3611527), (7148, 2821316), (8084, 2494652), (14296, 1410658), (15007, 1343824), (16168, 1247326), (16403, 1229456), (28592, 705329), (30014, 671912), (32336, 623663), (32806, 614728), (60028, 335956), (65612, 307364), (76841, 262448), (83989, 240112), (120056, 167978), (131224, 153682)]