18957804568

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1\times {\mathrm{1951}}^1$

素因数の和:2648

約数の個数: 64

約数和(自身を含む): 37227294720

約数和(自身を除く): 18269490152

約数列:

[1, 2, 4, 8, 43, 47, 86, 94, 172, 188, 344, 376, 601, 1202, 1951, 2021, 2404, 3902, 4042, 4808, 7804, 8084, 15608, 16168, 25843, 28247, 51686, 56494, 83893, 91697, 103372, 112988, 167786, 183394, 206744, 225976, 335572, 366788, 671144, 733576, 1172551, 1214621, 2345102, 2429242, 3942971, 4690204, 4858484, 7885942, 9380408, 9716968, 15771884, 31543768, 50419693, 55109897, 100839386, 110219794, 201678772, 220439588, 403357544, 440879176, 2369725571, 4739451142, 9478902284, 18957804568]

約数ペア:

[(1, 18957804568), (2, 9478902284), (4, 4739451142), (8, 2369725571), (43, 440879176), (47, 403357544), (86, 220439588), (94, 201678772), (172, 110219794), (188, 100839386), (344, 55109897), (376, 50419693), (601, 31543768), (1202, 15771884), (1951, 9716968), (2021, 9380408), (2404, 7885942), (3902, 4858484), (4042, 4690204), (4808, 3942971), (7804, 2429242), (8084, 2345102), (15608, 1214621), (16168, 1172551), (25843, 733576), (28247, 671144), (51686, 366788), (56494, 335572), (83893, 225976), (91697, 206744), (103372, 183394), (112988, 167786)]