19192760

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1867}}^1$

素因数の和:2135

約数の個数: 32

約数和(自身を含む): 43374960

約数和(自身を除く): 24182200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1867, 2056, 2570, 3734, 5140, 7468, 9335, 10280, 14936, 18670, 37340, 74680, 479819, 959638, 1919276, 2399095, 3838552, 4798190, 9596380, 19192760]

約数ペア:

[(1, 19192760), (2, 9596380), (4, 4798190), (5, 3838552), (8, 2399095), (10, 1919276), (20, 959638), (40, 479819), (257, 74680), (514, 37340), (1028, 18670), (1285, 14936), (1867, 10280), (2056, 9335), (2570, 7468), (3734, 5140)]