199806145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{2689}}^1$

素因数の和:2905

約数の個数: 32

約数和(自身を含む): 300591360

約数和(自身を除く): 100785215

約数列:

[1, 5, 7, 11, 35, 55, 77, 193, 385, 965, 1351, 2123, 2689, 6755, 10615, 13445, 14861, 18823, 29579, 74305, 94115, 147895, 207053, 518977, 1035265, 2594885, 3632839, 5708747, 18164195, 28543735, 39961229, 199806145]

約数ペア:

[(1, 199806145), (5, 39961229), (7, 28543735), (11, 18164195), (35, 5708747), (55, 3632839), (77, 2594885), (193, 1035265), (385, 518977), (965, 207053), (1351, 147895), (2123, 94115), (2689, 74305), (6755, 29579), (10615, 18823), (13445, 14861)]