8427320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 20995200

約数和(自身を除く): 12567880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 107, 110, 179, 214, 220, 358, 428, 440, 535, 716, 856, 895, 1070, 1177, 1432, 1790, 1969, 2140, 2354, 3580, 3938, 4280, 4708, 5885, 7160, 7876, 9416, 9845, 11770, 15752, 19153, 19690, 23540, 38306, 39380, 47080, 76612, 78760, 95765, 153224, 191530, 210683, 383060, 421366, 766120, 842732, 1053415, 1685464, 2106830, 4213660, 8427320]

約数ペア:

[(1, 8427320), (2, 4213660), (4, 2106830), (5, 1685464), (8, 1053415), (10, 842732), (11, 766120), (20, 421366), (22, 383060), (40, 210683), (44, 191530), (55, 153224), (88, 95765), (107, 78760), (110, 76612), (179, 47080), (214, 39380), (220, 38306), (358, 23540), (428, 19690), (440, 19153), (535, 15752), (716, 11770), (856, 9845), (895, 9416), (1070, 7876), (1177, 7160), (1432, 5885), (1790, 4708), (1969, 4280), (2140, 3938), (2354, 3580)]