31379500

素因数分解:

$2^2\times 5^3\times {\mathrm{97}}^1\times {\mathrm{647}}^1$

素因数の和:763

約数の個数: 48

約数和(自身を含む): 69346368

約数和(自身を除く): 37966868

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 194, 250, 388, 485, 500, 647, 970, 1294, 1940, 2425, 2588, 3235, 4850, 6470, 9700, 12125, 12940, 16175, 24250, 32350, 48500, 62759, 64700, 80875, 125518, 161750, 251036, 313795, 323500, 627590, 1255180, 1568975, 3137950, 6275900, 7844875, 15689750, 31379500]

約数ペア:

[(1, 31379500), (2, 15689750), (4, 7844875), (5, 6275900), (10, 3137950), (20, 1568975), (25, 1255180), (50, 627590), (97, 323500), (100, 313795), (125, 251036), (194, 161750), (250, 125518), (388, 80875), (485, 64700), (500, 62759), (647, 48500), (970, 32350), (1294, 24250), (1940, 16175), (2425, 12940), (2588, 12125), (3235, 9700), (4850, 6470)]