161981008

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{49871}}^1$

素因数の和:49915

約数の個数: 40

約数和(自身を含む): 371047680

約数和(自身を除く): 209066672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 49871, 99742, 199484, 349097, 398968, 698194, 797936, 1396388, 1446259, 2792776, 2892518, 5585552, 5785036, 10123813, 11570072, 20247626, 23140144, 40495252, 80990504, 161981008]

約数ペア:

[(1, 161981008), (2, 80990504), (4, 40495252), (7, 23140144), (8, 20247626), (14, 11570072), (16, 10123813), (28, 5785036), (29, 5585552), (56, 2892518), (58, 2792776), (112, 1446259), (116, 1396388), (203, 797936), (232, 698194), (406, 398968), (464, 349097), (812, 199484), (1624, 99742), (3248, 49871)]