261505288

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2609}}^1$

素因数の和:2710

約数の個数: 64

約数和(自身を含む): 575035200

約数和(自身を除く): 313529912

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 67, 68, 88, 134, 136, 187, 268, 374, 536, 737, 748, 1139, 1474, 1496, 2278, 2609, 2948, 4556, 5218, 5896, 9112, 10436, 12529, 20872, 25058, 28699, 44353, 50116, 57398, 88706, 100232, 114796, 174803, 177412, 229592, 349606, 354824, 487883, 699212, 975766, 1398424, 1922833, 1951532, 2971651, 3845666, 3903064, 5943302, 7691332, 11886604, 15382664, 23773208, 32688161, 65376322, 130752644, 261505288]

約数ペア:

[(1, 261505288), (2, 130752644), (4, 65376322), (8, 32688161), (11, 23773208), (17, 15382664), (22, 11886604), (34, 7691332), (44, 5943302), (67, 3903064), (68, 3845666), (88, 2971651), (134, 1951532), (136, 1922833), (187, 1398424), (268, 975766), (374, 699212), (536, 487883), (737, 354824), (748, 349606), (1139, 229592), (1474, 177412), (1496, 174803), (2278, 114796), (2609, 100232), (2948, 88706), (4556, 57398), (5218, 50116), (5896, 44353), (9112, 28699), (10436, 25058), (12529, 20872)]