28015570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{991}}^1$

素因数の和:1266

約数の個数: 32

約数和(自身を含む): 55282176

約数和(自身を除く): 27266606

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 257, 514, 991, 1285, 1982, 2570, 2827, 4955, 5654, 9910, 10901, 14135, 21802, 28270, 54505, 109010, 254687, 509374, 1273435, 2546870, 2801557, 5603114, 14007785, 28015570]

約数ペア:

[(1, 28015570), (2, 14007785), (5, 5603114), (10, 2801557), (11, 2546870), (22, 1273435), (55, 509374), (110, 254687), (257, 109010), (514, 54505), (991, 28270), (1285, 21802), (1982, 14135), (2570, 10901), (2827, 9910), (4955, 5654)]