17887660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1907}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 43593984

約数和(自身を除く): 25706324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 1907, 2345, 3814, 4690, 7628, 9380, 9535, 13349, 19070, 26698, 38140, 53396, 66745, 127769, 133490, 255538, 266980, 511076, 638845, 894383, 1277690, 1788766, 2555380, 3577532, 4471915, 8943830, 17887660]

約数ペア:

[(1, 17887660), (2, 8943830), (4, 4471915), (5, 3577532), (7, 2555380), (10, 1788766), (14, 1277690), (20, 894383), (28, 638845), (35, 511076), (67, 266980), (70, 255538), (134, 133490), (140, 127769), (268, 66745), (335, 53396), (469, 38140), (670, 26698), (938, 19070), (1340, 13349), (1876, 9535), (1907, 9380), (2345, 7628), (3814, 4690)]