20405721060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{201359}}^1$

素因数の和:201937

約数の個数: 72

約数和(自身を含む): 62007603840

約数和(自身を除く): 41601882780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 563, 1126, 1689, 2252, 2815, 3378, 5067, 5630, 6756, 8445, 10134, 11260, 16890, 20268, 25335, 33780, 50670, 101340, 201359, 402718, 604077, 805436, 1006795, 1208154, 1812231, 2013590, 2416308, 3020385, 3624462, 4027180, 6040770, 7248924, 9061155, 12081540, 18122310, 36244620, 113365117, 226730234, 340095351, 453460468, 566825585, 680190702, 1020286053, 1133651170, 1360381404, 1700476755, 2040572106, 2267302340, 3400953510, 4081144212, 5101430265, 6801907020, 10202860530, 20405721060]

約数ペア:

[(1, 20405721060), (2, 10202860530), (3, 6801907020), (4, 5101430265), (5, 4081144212), (6, 3400953510), (9, 2267302340), (10, 2040572106), (12, 1700476755), (15, 1360381404), (18, 1133651170), (20, 1020286053), (30, 680190702), (36, 566825585), (45, 453460468), (60, 340095351), (90, 226730234), (180, 113365117), (563, 36244620), (1126, 18122310), (1689, 12081540), (2252, 9061155), (2815, 7248924), (3378, 6040770), (5067, 4027180), (5630, 3624462), (6756, 3020385), (8445, 2416308), (10134, 2013590), (11260, 1812231), (16890, 1208154), (20268, 1006795), (25335, 805436), (33780, 604077), (50670, 402718), (101340, 201359)]