27899980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73421}}^1$

素因数の和:73449

約数の個数: 24

約数和(自身を含む): 61674480

約数和(自身を除く): 33774500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 73421, 146842, 293684, 367105, 734210, 1394999, 1468420, 2789998, 5579996, 6974995, 13949990, 27899980]

約数ペア:

[(1, 27899980), (2, 13949990), (4, 6974995), (5, 5579996), (10, 2789998), (19, 1468420), (20, 1394999), (38, 734210), (76, 367105), (95, 293684), (190, 146842), (380, 73421)]