198996968

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{21839}}^1$

素因数の和:21929

約数の個数: 32

約数和(自身を含む): 400982400

約数和(自身を除く): 201985432

約数列:

[1, 2, 4, 8, 17, 34, 67, 68, 134, 136, 268, 536, 1139, 2278, 4556, 9112, 21839, 43678, 87356, 174712, 371263, 742526, 1463213, 1485052, 2926426, 2970104, 5852852, 11705704, 24874621, 49749242, 99498484, 198996968]

約数ペア:

[(1, 198996968), (2, 99498484), (4, 49749242), (8, 24874621), (17, 11705704), (34, 5852852), (67, 2970104), (68, 2926426), (134, 1485052), (136, 1463213), (268, 742526), (536, 371263), (1139, 174712), (2278, 87356), (4556, 43678), (9112, 21839)]