81661636

素因数分解:

$2^2\times 7^2\times {\mathrm{373}}^1\times {\mathrm{1117}}^1$

素因数の和:1508

約数の個数: 36

約数和(自身を含む): 166834668

約数和(自身を除く): 85173032

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 373, 746, 1117, 1492, 2234, 2611, 4468, 5222, 7819, 10444, 15638, 18277, 31276, 36554, 54733, 73108, 109466, 218932, 416641, 833282, 1666564, 2916487, 5832974, 11665948, 20415409, 40830818, 81661636]

約数ペア:

[(1, 81661636), (2, 40830818), (4, 20415409), (7, 11665948), (14, 5832974), (28, 2916487), (49, 1666564), (98, 833282), (196, 416641), (373, 218932), (746, 109466), (1117, 73108), (1492, 54733), (2234, 36554), (2611, 31276), (4468, 18277), (5222, 15638), (7819, 10444)]