20418888

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 60328800

約数和(自身を除く): 39909912

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 97, 98, 147, 168, 179, 194, 196, 291, 294, 358, 388, 392, 537, 582, 588, 679, 716, 776, 1074, 1164, 1176, 1253, 1358, 1432, 2037, 2148, 2328, 2506, 2716, 3759, 4074, 4296, 4753, 5012, 5432, 7518, 8148, 8771, 9506, 10024, 14259, 15036, 16296, 17363, 17542, 19012, 26313, 28518, 30072, 34726, 35084, 38024, 52089, 52626, 57036, 69452, 70168, 104178, 105252, 114072, 121541, 138904, 208356, 210504, 243082, 364623, 416712, 486164, 729246, 850787, 972328, 1458492, 1701574, 2552361, 2916984, 3403148, 5104722, 6806296, 10209444, 20418888]

約数ペア:

[(1, 20418888), (2, 10209444), (3, 6806296), (4, 5104722), (6, 3403148), (7, 2916984), (8, 2552361), (12, 1701574), (14, 1458492), (21, 972328), (24, 850787), (28, 729246), (42, 486164), (49, 416712), (56, 364623), (84, 243082), (97, 210504), (98, 208356), (147, 138904), (168, 121541), (179, 114072), (194, 105252), (196, 104178), (291, 70168), (294, 69452), (358, 57036), (388, 52626), (392, 52089), (537, 38024), (582, 35084), (588, 34726), (679, 30072), (716, 28518), (776, 26313), (1074, 19012), (1164, 17542), (1176, 17363), (1253, 16296), (1358, 15036), (1432, 14259), (2037, 10024), (2148, 9506), (2328, 8771), (2506, 8148), (2716, 7518), (3759, 5432), (4074, 5012), (4296, 4753)]