261709154

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^2$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 483808320

約数和(自身を除く): 222099166

約数列:

[1, 2, 7, 14, 19, 38, 61, 122, 127, 133, 254, 266, 427, 854, 889, 1159, 1778, 2318, 2413, 4826, 7747, 8113, 15494, 16129, 16226, 16891, 32258, 33782, 54229, 108458, 112903, 147193, 225806, 294386, 306451, 612902, 983869, 1030351, 1967738, 2060702, 2145157, 4290314, 6887083, 13774166, 18693511, 37387022, 130854577, 261709154]

約数ペア:

[(1, 261709154), (2, 130854577), (7, 37387022), (14, 18693511), (19, 13774166), (38, 6887083), (61, 4290314), (122, 2145157), (127, 2060702), (133, 1967738), (254, 1030351), (266, 983869), (427, 612902), (854, 306451), (889, 294386), (1159, 225806), (1778, 147193), (2318, 112903), (2413, 108458), (4826, 54229), (7747, 33782), (8113, 32258), (15494, 16891), (16129, 16226)]