201630825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1987}}^1$

素因数の和:2055

約数の個数: 72

約数和(自身を含む): 403786656

約数和(自身を除く): 202155831

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 41, 45, 55, 75, 99, 123, 165, 205, 225, 275, 369, 451, 495, 615, 825, 1025, 1353, 1845, 1987, 2255, 2475, 3075, 4059, 5961, 6765, 9225, 9935, 11275, 17883, 20295, 21857, 29805, 33825, 49675, 65571, 81467, 89415, 101475, 109285, 149025, 196713, 244401, 327855, 407335, 447075, 546425, 733203, 896137, 983565, 1222005, 1639275, 2036675, 2688411, 3666015, 4480685, 4917825, 6110025, 8065233, 13442055, 18330075, 22403425, 40326165, 67210275, 201630825]

約数ペア:

[(1, 201630825), (3, 67210275), (5, 40326165), (9, 22403425), (11, 18330075), (15, 13442055), (25, 8065233), (33, 6110025), (41, 4917825), (45, 4480685), (55, 3666015), (75, 2688411), (99, 2036675), (123, 1639275), (165, 1222005), (205, 983565), (225, 896137), (275, 733203), (369, 546425), (451, 447075), (495, 407335), (615, 327855), (825, 244401), (1025, 196713), (1353, 149025), (1845, 109285), (1987, 101475), (2255, 89415), (2475, 81467), (3075, 65571), (4059, 49675), (5961, 33825), (6765, 29805), (9225, 21857), (9935, 20295), (11275, 17883)]