20845300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 52399424

約数和(自身を除く): 31554124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 97, 100, 140, 175, 194, 307, 350, 388, 485, 614, 679, 700, 970, 1228, 1358, 1535, 1940, 2149, 2425, 2716, 3070, 3395, 4298, 4850, 6140, 6790, 7675, 8596, 9700, 10745, 13580, 15350, 16975, 21490, 29779, 30700, 33950, 42980, 53725, 59558, 67900, 107450, 119116, 148895, 208453, 214900, 297790, 416906, 595580, 744475, 833812, 1042265, 1488950, 2084530, 2977900, 4169060, 5211325, 10422650, 20845300]

約数ペア:

[(1, 20845300), (2, 10422650), (4, 5211325), (5, 4169060), (7, 2977900), (10, 2084530), (14, 1488950), (20, 1042265), (25, 833812), (28, 744475), (35, 595580), (50, 416906), (70, 297790), (97, 214900), (100, 208453), (140, 148895), (175, 119116), (194, 107450), (307, 67900), (350, 59558), (388, 53725), (485, 42980), (614, 33950), (679, 30700), (700, 29779), (970, 21490), (1228, 16975), (1358, 15350), (1535, 13580), (1940, 10745), (2149, 9700), (2425, 8596), (2716, 7675), (3070, 6790), (3395, 6140), (4298, 4850)]