20198880612

素因数分解:

$2^2\times 3^2\times {\mathrm{211}}^1\times {\mathrm{571}}^1\times {\mathrm{4657}}^1$

素因数の和:5449

約数の個数: 72

約数和(自身を含む): 51401141792

約数和(自身を除く): 31202261180

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 211, 422, 571, 633, 844, 1142, 1266, 1713, 1899, 2284, 2532, 3426, 3798, 4657, 5139, 6852, 7596, 9314, 10278, 13971, 18628, 20556, 27942, 41913, 55884, 83826, 120481, 167652, 240962, 361443, 481924, 722886, 982627, 1084329, 1445772, 1965254, 2168658, 2659147, 2947881, 3930508, 4337316, 5318294, 5895762, 7977441, 8843643, 10636588, 11791524, 15954882, 17687286, 23932323, 31909764, 35374572, 47864646, 95729292, 561080017, 1122160034, 1683240051, 2244320068, 3366480102, 5049720153, 6732960204, 10099440306, 20198880612]

約数ペア:

[(1, 20198880612), (2, 10099440306), (3, 6732960204), (4, 5049720153), (6, 3366480102), (9, 2244320068), (12, 1683240051), (18, 1122160034), (36, 561080017), (211, 95729292), (422, 47864646), (571, 35374572), (633, 31909764), (844, 23932323), (1142, 17687286), (1266, 15954882), (1713, 11791524), (1899, 10636588), (2284, 8843643), (2532, 7977441), (3426, 5895762), (3798, 5318294), (4657, 4337316), (5139, 3930508), (6852, 2947881), (7596, 2659147), (9314, 2168658), (10278, 1965254), (13971, 1445772), (18628, 1084329), (20556, 982627), (27942, 722886), (41913, 481924), (55884, 361443), (83826, 240962), (120481, 167652)]