81394900

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{7607}}^1$

素因数の和:7728

約数の個数: 36

約数和(自身を含む): 178301088

約数和(自身を除く): 96906188

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 2140, 2675, 5350, 7607, 10700, 15214, 30428, 38035, 76070, 152140, 190175, 380350, 760700, 813949, 1627898, 3255796, 4069745, 8139490, 16278980, 20348725, 40697450, 81394900]

約数ペア:

[(1, 81394900), (2, 40697450), (4, 20348725), (5, 16278980), (10, 8139490), (20, 4069745), (25, 3255796), (50, 1627898), (100, 813949), (107, 760700), (214, 380350), (428, 190175), (535, 152140), (1070, 76070), (2140, 38035), (2675, 30428), (5350, 15214), (7607, 10700)]