810405

素因数分解:

$3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:72

約数の個数: 48

約数和(自身を含む): 1572480

約数和(自身を除く): 762075

約数列:

[1, 3, 5, 9, 15, 23, 27, 29, 45, 69, 81, 87, 115, 135, 145, 207, 243, 261, 345, 405, 435, 621, 667, 783, 1035, 1215, 1305, 1863, 2001, 2349, 3105, 3335, 3915, 5589, 6003, 7047, 9315, 10005, 11745, 18009, 27945, 30015, 35235, 54027, 90045, 162081, 270135, 810405]

約数ペア:

[(1, 810405), (3, 270135), (5, 162081), (9, 90045), (15, 54027), (23, 35235), (27, 30015), (29, 27945), (45, 18009), (69, 11745), (81, 10005), (87, 9315), (115, 7047), (135, 6003), (145, 5589), (207, 3915), (243, 3335), (261, 3105), (345, 2349), (405, 2001), (435, 1863), (621, 1305), (667, 1215), (783, 1035)]