261769352

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{19819}}^1$

素因数の和:19965

約数の個数: 32

約数和(自身を含む): 532761600

約数和(自身を除く): 270992248

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1651, 3302, 6604, 13208, 19819, 39638, 79276, 158552, 257647, 515294, 1030588, 2061176, 2517013, 5034026, 10068052, 20136104, 32721169, 65442338, 130884676, 261769352]

約数ペア:

[(1, 261769352), (2, 130884676), (4, 65442338), (8, 32721169), (13, 20136104), (26, 10068052), (52, 5034026), (104, 2517013), (127, 2061176), (254, 1030588), (508, 515294), (1016, 257647), (1651, 158552), (3302, 79276), (6604, 39638), (13208, 19819)]