220981628

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{415379}}^1$

素因数の和:415409

約数の個数: 24

約数和(自身を含む): 465225600

約数和(自身を除く): 244243972

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 415379, 830758, 1661516, 2907653, 5815306, 7892201, 11630612, 15784402, 31568804, 55245407, 110490814, 220981628]

約数ペア:

[(1, 220981628), (2, 110490814), (4, 55245407), (7, 31568804), (14, 15784402), (19, 11630612), (28, 7892201), (38, 5815306), (76, 2907653), (133, 1661516), (266, 830758), (532, 415379)]