2016020000

素因数分解:

$2^5\times 5^4\times {\mathrm{100801}}^1$

素因数の和:100831

約数の個数: 60

約数和(自身を含む): 4959760806

約数和(自身を除く): 2943740806

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 4000, 5000, 10000, 20000, 100801, 201602, 403204, 504005, 806408, 1008010, 1612816, 2016020, 2520025, 3225632, 4032040, 5040050, 8064080, 10080100, 12600125, 16128160, 20160200, 25200250, 40320400, 50400500, 63000625, 80640800, 100801000, 126001250, 201602000, 252002500, 403204000, 504005000, 1008010000, 2016020000]

約数ペア:

[(1, 2016020000), (2, 1008010000), (4, 504005000), (5, 403204000), (8, 252002500), (10, 201602000), (16, 126001250), (20, 100801000), (25, 80640800), (32, 63000625), (40, 50400500), (50, 40320400), (80, 25200250), (100, 20160200), (125, 16128160), (160, 12600125), (200, 10080100), (250, 8064080), (400, 5040050), (500, 4032040), (625, 3225632), (800, 2520025), (1000, 2016020), (1250, 1612816), (2000, 1008010), (2500, 806408), (4000, 504005), (5000, 403204), (10000, 201602), (20000, 100801)]