7857405

素因数分解:

$3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 14676480

約数和(自身を除く): 6819075

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 223, 243, 261, 405, 435, 669, 783, 1115, 1215, 1305, 2007, 2349, 3345, 3915, 6021, 6467, 7047, 10035, 11745, 18063, 19401, 30105, 32335, 35235, 54189, 58203, 90315, 97005, 174609, 270945, 291015, 523827, 873045, 1571481, 2619135, 7857405]

約数ペア:

[(1, 7857405), (3, 2619135), (5, 1571481), (9, 873045), (15, 523827), (27, 291015), (29, 270945), (45, 174609), (81, 97005), (87, 90315), (135, 58203), (145, 54189), (223, 35235), (243, 32335), (261, 30105), (405, 19401), (435, 18063), (669, 11745), (783, 10035), (1115, 7047), (1215, 6467), (1305, 6021), (2007, 3915), (2349, 3345)]