989898012

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{27803}}^1$

素因数の和:27879

約数の個数: 72

約数和(自身を含む): 2671853184

約数和(自身を除く): 1681955172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 43, 46, 69, 86, 92, 129, 138, 172, 207, 258, 276, 387, 414, 516, 774, 828, 989, 1548, 1978, 2967, 3956, 5934, 8901, 11868, 17802, 27803, 35604, 55606, 83409, 111212, 166818, 250227, 333636, 500454, 639469, 1000908, 1195529, 1278938, 1918407, 2391058, 2557876, 3586587, 3836814, 4782116, 5755221, 7173174, 7673628, 10759761, 11510442, 14346348, 21519522, 23020884, 27497167, 43039044, 54994334, 82491501, 109988668, 164983002, 247474503, 329966004, 494949006, 989898012]

約数ペア:

[(1, 989898012), (2, 494949006), (3, 329966004), (4, 247474503), (6, 164983002), (9, 109988668), (12, 82491501), (18, 54994334), (23, 43039044), (36, 27497167), (43, 23020884), (46, 21519522), (69, 14346348), (86, 11510442), (92, 10759761), (129, 7673628), (138, 7173174), (172, 5755221), (207, 4782116), (258, 3836814), (276, 3586587), (387, 2557876), (414, 2391058), (516, 1918407), (774, 1278938), (828, 1195529), (989, 1000908), (1548, 639469), (1978, 500454), (2967, 333636), (3956, 250227), (5934, 166818), (8901, 111212), (11868, 83409), (17802, 55606), (27803, 35604)]