61261605

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{523}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 112806720

約数和(自身を除く): 51545115

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 137, 171, 285, 411, 523, 685, 855, 1233, 1569, 2055, 2603, 2615, 4707, 6165, 7809, 7845, 9937, 13015, 23427, 23535, 29811, 39045, 49685, 71651, 89433, 117135, 149055, 214953, 358255, 447165, 644859, 1074765, 1361369, 3224295, 4084107, 6806845, 12252321, 20420535, 61261605]

約数ペア:

[(1, 61261605), (3, 20420535), (5, 12252321), (9, 6806845), (15, 4084107), (19, 3224295), (45, 1361369), (57, 1074765), (95, 644859), (137, 447165), (171, 358255), (285, 214953), (411, 149055), (523, 117135), (685, 89433), (855, 71651), (1233, 49685), (1569, 39045), (2055, 29811), (2603, 23535), (2615, 23427), (4707, 13015), (6165, 9937), (7809, 7845)]