28144160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15991}}^1$

素因数の和:16017

約数の個数: 48

約数和(自身を含む): 72539712

約数和(自身を除く): 44395552

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 15991, 31982, 63964, 79955, 127928, 159910, 175901, 255856, 319820, 351802, 511712, 639640, 703604, 879505, 1279280, 1407208, 1759010, 2558560, 2814416, 3518020, 5628832, 7036040, 14072080, 28144160]

約数ペア:

[(1, 28144160), (2, 14072080), (4, 7036040), (5, 5628832), (8, 3518020), (10, 2814416), (11, 2558560), (16, 1759010), (20, 1407208), (22, 1279280), (32, 879505), (40, 703604), (44, 639640), (55, 511712), (80, 351802), (88, 319820), (110, 255856), (160, 175901), (176, 159910), (220, 127928), (352, 79955), (440, 63964), (880, 31982), (1760, 15991)]