81943485

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1301}}^1$

素因数の和:1358

約数の個数: 64

約数和(自身を含む): 157489920

約数和(自身を除く): 75546435

約数列:

[1, 3, 5, 13, 15, 17, 19, 39, 51, 57, 65, 85, 95, 195, 221, 247, 255, 285, 323, 663, 741, 969, 1105, 1235, 1301, 1615, 3315, 3705, 3903, 4199, 4845, 6505, 12597, 16913, 19515, 20995, 22117, 24719, 50739, 62985, 66351, 74157, 84565, 110585, 123595, 253695, 287521, 321347, 331755, 370785, 420223, 862563, 964041, 1260669, 1437605, 1606735, 2101115, 4312815, 4820205, 5462899, 6303345, 16388697, 27314495, 81943485]

約数ペア:

[(1, 81943485), (3, 27314495), (5, 16388697), (13, 6303345), (15, 5462899), (17, 4820205), (19, 4312815), (39, 2101115), (51, 1606735), (57, 1437605), (65, 1260669), (85, 964041), (95, 862563), (195, 420223), (221, 370785), (247, 331755), (255, 321347), (285, 287521), (323, 253695), (663, 123595), (741, 110585), (969, 84565), (1105, 74157), (1235, 66351), (1301, 62985), (1615, 50739), (3315, 24719), (3705, 22117), (3903, 20995), (4199, 19515), (4845, 16913), (6505, 12597)]