20163400

素因数分解:

$2^3\times 5^2\times {\mathrm{181}}^1\times {\mathrm{557}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 47223540

約数和(自身を除く): 27060140

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 181, 200, 362, 557, 724, 905, 1114, 1448, 1810, 2228, 2785, 3620, 4456, 4525, 5570, 7240, 9050, 11140, 13925, 18100, 22280, 27850, 36200, 55700, 100817, 111400, 201634, 403268, 504085, 806536, 1008170, 2016340, 2520425, 4032680, 5040850, 10081700, 20163400]

約数ペア:

[(1, 20163400), (2, 10081700), (4, 5040850), (5, 4032680), (8, 2520425), (10, 2016340), (20, 1008170), (25, 806536), (40, 504085), (50, 403268), (100, 201634), (181, 111400), (200, 100817), (362, 55700), (557, 36200), (724, 27850), (905, 22280), (1114, 18100), (1448, 13925), (1810, 11140), (2228, 9050), (2785, 7240), (3620, 5570), (4456, 4525)]