64068500

素因数分解:

$2^2\times 5^3\times {\mathrm{97}}^1\times {\mathrm{1321}}^1$

素因数の和:1437

約数の個数: 48

約数和(自身を含む): 141475152

約数和(自身を除く): 77406652

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 194, 250, 388, 485, 500, 970, 1321, 1940, 2425, 2642, 4850, 5284, 6605, 9700, 12125, 13210, 24250, 26420, 33025, 48500, 66050, 128137, 132100, 165125, 256274, 330250, 512548, 640685, 660500, 1281370, 2562740, 3203425, 6406850, 12813700, 16017125, 32034250, 64068500]

約数ペア:

[(1, 64068500), (2, 32034250), (4, 16017125), (5, 12813700), (10, 6406850), (20, 3203425), (25, 2562740), (50, 1281370), (97, 660500), (100, 640685), (125, 512548), (194, 330250), (250, 256274), (388, 165125), (485, 132100), (500, 128137), (970, 66050), (1321, 48500), (1940, 33025), (2425, 26420), (2642, 24250), (4850, 13210), (5284, 12125), (6605, 9700)]