440390067

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1787}}^1$

素因数の和:1963

約数の個数: 32

約数和(自身を含む): 648829440

約数和(自身を除く): 208439373

約数列:

[1, 3, 13, 39, 71, 89, 213, 267, 923, 1157, 1787, 2769, 3471, 5361, 6319, 18957, 23231, 69693, 82147, 126877, 159043, 246441, 380631, 477129, 1649401, 2067559, 4948203, 6202677, 11292053, 33876159, 146796689, 440390067]

約数ペア:

[(1, 440390067), (3, 146796689), (13, 33876159), (39, 11292053), (71, 6202677), (89, 4948203), (213, 2067559), (267, 1649401), (923, 477129), (1157, 380631), (1787, 246441), (2769, 159043), (3471, 126877), (5361, 82147), (6319, 69693), (18957, 23231)]