199809969400

素因数分解:

$2^3\times 5^2\times {\mathrm{1213}}^1\times {\mathrm{823619}}^1$

素因数の和:824848

約数の個数: 48

約数和(自身を含む): 464941726200

約数和(自身を除く): 265131756800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1213, 2426, 4852, 6065, 9704, 12130, 24260, 30325, 48520, 60650, 121300, 242600, 823619, 1647238, 3294476, 4118095, 6588952, 8236190, 16472380, 20590475, 32944760, 41180950, 82361900, 164723800, 999049847, 1998099694, 3996199388, 4995249235, 7992398776, 9990498470, 19980996940, 24976246175, 39961993880, 49952492350, 99904984700, 199809969400]

約数ペア:

[(1, 199809969400), (2, 99904984700), (4, 49952492350), (5, 39961993880), (8, 24976246175), (10, 19980996940), (20, 9990498470), (25, 7992398776), (40, 4995249235), (50, 3996199388), (100, 1998099694), (200, 999049847), (1213, 164723800), (2426, 82361900), (4852, 41180950), (6065, 32944760), (9704, 20590475), (12130, 16472380), (24260, 8236190), (30325, 6588952), (48520, 4118095), (60650, 3294476), (121300, 1647238), (242600, 823619)]