215600

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{11}}^1$

素因数の和:43

約数の個数: 90

約数和(自身を含む): 657324

約数和(自身を除く): 441724

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 49, 50, 55, 56, 70, 77, 80, 88, 98, 100, 110, 112, 140, 154, 175, 176, 196, 200, 220, 245, 275, 280, 308, 350, 385, 392, 400, 440, 490, 539, 550, 560, 616, 700, 770, 784, 880, 980, 1078, 1100, 1225, 1232, 1400, 1540, 1925, 1960, 2156, 2200, 2450, 2695, 2800, 3080, 3850, 3920, 4312, 4400, 4900, 5390, 6160, 7700, 8624, 9800, 10780, 13475, 15400, 19600, 21560, 26950, 30800, 43120, 53900, 107800, 215600]

約数ペア:

[(1, 215600), (2, 107800), (4, 53900), (5, 43120), (7, 30800), (8, 26950), (10, 21560), (11, 19600), (14, 15400), (16, 13475), (20, 10780), (22, 9800), (25, 8624), (28, 7700), (35, 6160), (40, 5390), (44, 4900), (49, 4400), (50, 4312), (55, 3920), (56, 3850), (70, 3080), (77, 2800), (80, 2695), (88, 2450), (98, 2200), (100, 2156), (110, 1960), (112, 1925), (140, 1540), (154, 1400), (175, 1232), (176, 1225), (196, 1100), (200, 1078), (220, 980), (245, 880), (275, 784), (280, 770), (308, 700), (350, 616), (385, 560), (392, 550), (400, 539), (440, 490)]