81472405

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{18329}}^1$

素因数の和:18468

約数の個数: 16

約数和(自身を含む): 112619520

約数和(自身を除く): 31147115

約数列:

[1, 5, 7, 35, 127, 635, 889, 4445, 18329, 91645, 128303, 641515, 2327783, 11638915, 16294481, 81472405]

約数ペア:

[(1, 81472405), (5, 16294481), (7, 11638915), (35, 2327783), (127, 641515), (635, 128303), (889, 91645), (4445, 18329)]