1661004

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 4564560

約数和(自身を除く): 2903556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 37, 43, 58, 74, 86, 87, 111, 116, 129, 148, 172, 174, 222, 258, 261, 333, 348, 387, 444, 516, 522, 666, 774, 1044, 1073, 1247, 1332, 1548, 1591, 2146, 2494, 3182, 3219, 3741, 4292, 4773, 4988, 6364, 6438, 7482, 9546, 9657, 11223, 12876, 14319, 14964, 19092, 19314, 22446, 28638, 38628, 44892, 46139, 57276, 92278, 138417, 184556, 276834, 415251, 553668, 830502, 1661004]

約数ペア:

[(1, 1661004), (2, 830502), (3, 553668), (4, 415251), (6, 276834), (9, 184556), (12, 138417), (18, 92278), (29, 57276), (36, 46139), (37, 44892), (43, 38628), (58, 28638), (74, 22446), (86, 19314), (87, 19092), (111, 14964), (116, 14319), (129, 12876), (148, 11223), (172, 9657), (174, 9546), (222, 7482), (258, 6438), (261, 6364), (333, 4988), (348, 4773), (387, 4292), (444, 3741), (516, 3219), (522, 3182), (666, 2494), (774, 2146), (1044, 1591), (1073, 1548), (1247, 1332)]