2156820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 6115200

約数和(自身を除く): 3958380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 206, 309, 349, 412, 515, 618, 698, 1030, 1047, 1236, 1396, 1545, 1745, 2060, 2094, 3090, 3490, 4188, 5235, 6180, 6980, 10470, 20940, 35947, 71894, 107841, 143788, 179735, 215682, 359470, 431364, 539205, 718940, 1078410, 2156820]

約数ペア:

[(1, 2156820), (2, 1078410), (3, 718940), (4, 539205), (5, 431364), (6, 359470), (10, 215682), (12, 179735), (15, 143788), (20, 107841), (30, 71894), (60, 35947), (103, 20940), (206, 10470), (309, 6980), (349, 6180), (412, 5235), (515, 4188), (618, 3490), (698, 3090), (1030, 2094), (1047, 2060), (1236, 1745), (1396, 1545)]