81677708

素因数分解:

$2^2\times 7^2\times {\mathrm{281}}^1\times {\mathrm{1483}}^1$

素因数の和:1782

約数の個数: 36

約数和(自身を含む): 166976712

約数和(自身を除く): 85299004

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 281, 562, 1124, 1483, 1967, 2966, 3934, 5932, 7868, 10381, 13769, 20762, 27538, 41524, 55076, 72667, 145334, 290668, 416723, 833446, 1666892, 2917061, 5834122, 11668244, 20419427, 40838854, 81677708]

約数ペア:

[(1, 81677708), (2, 40838854), (4, 20419427), (7, 11668244), (14, 5834122), (28, 2917061), (49, 1666892), (98, 833446), (196, 416723), (281, 290668), (562, 145334), (1124, 72667), (1483, 55076), (1967, 41524), (2966, 27538), (3934, 20762), (5932, 13769), (7868, 10381)]