1386880

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 3635280

約数和(自身を除く): 2248400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 197, 220, 320, 352, 394, 440, 640, 704, 788, 880, 985, 1408, 1576, 1760, 1970, 2167, 3152, 3520, 3940, 4334, 6304, 7040, 7880, 8668, 10835, 12608, 15760, 17336, 21670, 25216, 31520, 34672, 43340, 63040, 69344, 86680, 126080, 138688, 173360, 277376, 346720, 693440, 1386880]

約数ペア:

[(1, 1386880), (2, 693440), (4, 346720), (5, 277376), (8, 173360), (10, 138688), (11, 126080), (16, 86680), (20, 69344), (22, 63040), (32, 43340), (40, 34672), (44, 31520), (55, 25216), (64, 21670), (80, 17336), (88, 15760), (110, 12608), (128, 10835), (160, 8668), (176, 7880), (197, 7040), (220, 6304), (320, 4334), (352, 3940), (394, 3520), (440, 3152), (640, 2167), (704, 1970), (788, 1760), (880, 1576), (985, 1408)]