427280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{109}}^1$

素因数の和:136

約数の個数: 60

約数和(自身を含む): 1166220

約数和(自身を除く): 738940

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 109, 112, 140, 196, 218, 245, 280, 392, 436, 490, 545, 560, 763, 784, 872, 980, 1090, 1526, 1744, 1960, 2180, 3052, 3815, 3920, 4360, 5341, 6104, 7630, 8720, 10682, 12208, 15260, 21364, 26705, 30520, 42728, 53410, 61040, 85456, 106820, 213640, 427280]

約数ペア:

[(1, 427280), (2, 213640), (4, 106820), (5, 85456), (7, 61040), (8, 53410), (10, 42728), (14, 30520), (16, 26705), (20, 21364), (28, 15260), (35, 12208), (40, 10682), (49, 8720), (56, 7630), (70, 6104), (80, 5341), (98, 4360), (109, 3920), (112, 3815), (140, 3052), (196, 2180), (218, 1960), (245, 1744), (280, 1526), (392, 1090), (436, 980), (490, 872), (545, 784), (560, 763)]