217967560

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 500152320

約数和(自身を除く): 282184760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 127, 214, 254, 401, 428, 508, 535, 635, 802, 856, 1016, 1070, 1270, 1604, 2005, 2140, 2540, 3208, 4010, 4280, 5080, 8020, 13589, 16040, 27178, 42907, 50927, 54356, 67945, 85814, 101854, 108712, 135890, 171628, 203708, 214535, 254635, 271780, 343256, 407416, 429070, 509270, 543560, 858140, 1018540, 1716280, 2037080, 5449189, 10898378, 21796756, 27245945, 43593512, 54491890, 108983780, 217967560]

約数ペア:

[(1, 217967560), (2, 108983780), (4, 54491890), (5, 43593512), (8, 27245945), (10, 21796756), (20, 10898378), (40, 5449189), (107, 2037080), (127, 1716280), (214, 1018540), (254, 858140), (401, 543560), (428, 509270), (508, 429070), (535, 407416), (635, 343256), (802, 271780), (856, 254635), (1016, 214535), (1070, 203708), (1270, 171628), (1604, 135890), (2005, 108712), (2140, 101854), (2540, 85814), (3208, 67945), (4010, 54356), (4280, 50927), (5080, 42907), (8020, 27178), (13589, 16040)]