20712770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{563}}^1$

素因数の和:866

約数の個数: 32

約数和(自身を含む): 40364352

約数和(自身を除く): 19651582

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 283, 563, 566, 1126, 1415, 2815, 2830, 3679, 5630, 7319, 7358, 14638, 18395, 36595, 36790, 73190, 159329, 318658, 796645, 1593290, 2071277, 4142554, 10356385, 20712770]

約数ペア:

[(1, 20712770), (2, 10356385), (5, 4142554), (10, 2071277), (13, 1593290), (26, 796645), (65, 318658), (130, 159329), (283, 73190), (563, 36790), (566, 36595), (1126, 18395), (1415, 14638), (2815, 7358), (2830, 7319), (3679, 5630)]