20012904

素因数分解:

$2^3\times 3^2\times {\mathrm{239}}^1\times {\mathrm{1163}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 54475200

約数和(自身を除く): 34462296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 239, 478, 717, 956, 1163, 1434, 1912, 2151, 2326, 2868, 3489, 4302, 4652, 5736, 6978, 8604, 9304, 10467, 13956, 17208, 20934, 27912, 41868, 83736, 277957, 555914, 833871, 1111828, 1667742, 2223656, 2501613, 3335484, 5003226, 6670968, 10006452, 20012904]

約数ペア:

[(1, 20012904), (2, 10006452), (3, 6670968), (4, 5003226), (6, 3335484), (8, 2501613), (9, 2223656), (12, 1667742), (18, 1111828), (24, 833871), (36, 555914), (72, 277957), (239, 83736), (478, 41868), (717, 27912), (956, 20934), (1163, 17208), (1434, 13956), (1912, 10467), (2151, 9304), (2326, 8604), (2868, 6978), (3489, 5736), (4302, 4652)]