131208688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1787}}^1$

素因数の和:2161

約数の個数: 40

約数和(自身を含む): 274701168

約数和(自身を除く): 143492480

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 353, 706, 1412, 1787, 2824, 3574, 4589, 5648, 7148, 9178, 14296, 18356, 23231, 28592, 36712, 46462, 73424, 92924, 185848, 371696, 630811, 1261622, 2523244, 5046488, 8200543, 10092976, 16401086, 32802172, 65604344, 131208688]

約数ペア:

[(1, 131208688), (2, 65604344), (4, 32802172), (8, 16401086), (13, 10092976), (16, 8200543), (26, 5046488), (52, 2523244), (104, 1261622), (208, 630811), (353, 371696), (706, 185848), (1412, 92924), (1787, 73424), (2824, 46462), (3574, 36712), (4589, 28592), (5648, 23231), (7148, 18356), (9178, 14296)]