18485005

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^3$

素因数の和:87

約数の個数: 48

約数和(自身を含む): 29712960

約数和(自身を除く): 11227955

約数列:

[1, 5, 7, 11, 19, 35, 49, 55, 77, 95, 133, 209, 245, 361, 385, 539, 665, 931, 1045, 1463, 1805, 2527, 2695, 3971, 4655, 6859, 7315, 10241, 12635, 17689, 19855, 27797, 34295, 48013, 51205, 75449, 88445, 138985, 194579, 240065, 336091, 377245, 528143, 972895, 1680455, 2640715, 3697001, 18485005]

約数ペア:

[(1, 18485005), (5, 3697001), (7, 2640715), (11, 1680455), (19, 972895), (35, 528143), (49, 377245), (55, 336091), (77, 240065), (95, 194579), (133, 138985), (209, 88445), (245, 75449), (361, 51205), (385, 48013), (539, 34295), (665, 27797), (931, 19855), (1045, 17689), (1463, 12635), (1805, 10241), (2527, 7315), (2695, 6859), (3971, 4655)]