218279980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{4523}}^1$

素因数の和:4678

約数の個数: 48

約数和(自身を含む): 486420480

約数和(自身を除く): 268140500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 190, 254, 380, 508, 635, 1270, 2413, 2540, 4523, 4826, 9046, 9652, 12065, 18092, 22615, 24130, 45230, 48260, 85937, 90460, 171874, 343748, 429685, 574421, 859370, 1148842, 1718740, 2297684, 2872105, 5744210, 10913999, 11488420, 21827998, 43655996, 54569995, 109139990, 218279980]

約数ペア:

[(1, 218279980), (2, 109139990), (4, 54569995), (5, 43655996), (10, 21827998), (19, 11488420), (20, 10913999), (38, 5744210), (76, 2872105), (95, 2297684), (127, 1718740), (190, 1148842), (254, 859370), (380, 574421), (508, 429685), (635, 343748), (1270, 171874), (2413, 90460), (2540, 85937), (4523, 48260), (4826, 45230), (9046, 24130), (9652, 22615), (12065, 18092)]