821590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 1876896

約数和(自身を除く): 1055306

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 97, 110, 121, 154, 194, 242, 385, 485, 605, 679, 770, 847, 970, 1067, 1210, 1358, 1694, 2134, 3395, 4235, 5335, 6790, 7469, 8470, 10670, 11737, 14938, 23474, 37345, 58685, 74690, 82159, 117370, 164318, 410795, 821590]

約数ペア:

[(1, 821590), (2, 410795), (5, 164318), (7, 117370), (10, 82159), (11, 74690), (14, 58685), (22, 37345), (35, 23474), (55, 14938), (70, 11737), (77, 10670), (97, 8470), (110, 7469), (121, 6790), (154, 5335), (194, 4235), (242, 3395), (385, 2134), (485, 1694), (605, 1358), (679, 1210), (770, 1067), (847, 970)]