19382900

素因数分解:

$2^2\times 5^2\times {\mathrm{239}}^1\times {\mathrm{811}}^1$

素因数の和:1064

約数の個数: 36

約数和(自身を含む): 42288960

約数和(自身を除く): 22906060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 239, 478, 811, 956, 1195, 1622, 2390, 3244, 4055, 4780, 5975, 8110, 11950, 16220, 20275, 23900, 40550, 81100, 193829, 387658, 775316, 969145, 1938290, 3876580, 4845725, 9691450, 19382900]

約数ペア:

[(1, 19382900), (2, 9691450), (4, 4845725), (5, 3876580), (10, 1938290), (20, 969145), (25, 775316), (50, 387658), (100, 193829), (239, 81100), (478, 40550), (811, 23900), (956, 20275), (1195, 16220), (1622, 11950), (2390, 8110), (3244, 5975), (4055, 4780)]