209968118

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 330372000

約数和(自身を除く): 120403882

約数列:

[1, 2, 37, 74, 137, 139, 149, 274, 278, 298, 5069, 5143, 5513, 10138, 10286, 11026, 19043, 20413, 20711, 38086, 40826, 41422, 704591, 755281, 766307, 1409182, 1510562, 1532614, 2837407, 5674814, 104984059, 209968118]

約数ペア:

[(1, 209968118), (2, 104984059), (37, 5674814), (74, 2837407), (137, 1532614), (139, 1510562), (149, 1409182), (274, 766307), (278, 755281), (298, 704591), (5069, 41422), (5143, 40826), (5513, 38086), (10138, 20711), (10286, 20413), (11026, 19043)]