28165090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 55876392

約数和(自身を除く): 27711302

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 197, 290, 394, 493, 841, 985, 986, 1682, 1970, 2465, 3349, 4205, 4930, 5713, 6698, 8410, 11426, 14297, 16745, 28565, 28594, 33490, 57130, 71485, 97121, 142970, 165677, 194242, 331354, 485605, 828385, 971210, 1656770, 2816509, 5633018, 14082545, 28165090]

約数ペア:

[(1, 28165090), (2, 14082545), (5, 5633018), (10, 2816509), (17, 1656770), (29, 971210), (34, 828385), (58, 485605), (85, 331354), (145, 194242), (170, 165677), (197, 142970), (290, 97121), (394, 71485), (493, 57130), (841, 33490), (985, 28594), (986, 28565), (1682, 16745), (1970, 14297), (2465, 11426), (3349, 8410), (4205, 6698), (4930, 5713)]