199779020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{6763}}^1$

素因数の和:6990

約数の個数: 48

約数和(自身を含む): 481813248

約数和(自身を除く): 282034228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2954, 4220, 5908, 6763, 7385, 13526, 14770, 27052, 29540, 33815, 47341, 67630, 94682, 135260, 189364, 236705, 473410, 946820, 1426993, 2853986, 5707972, 7134965, 9988951, 14269930, 19977902, 28539860, 39955804, 49944755, 99889510, 199779020]

約数ペア:

[(1, 199779020), (2, 99889510), (4, 49944755), (5, 39955804), (7, 28539860), (10, 19977902), (14, 14269930), (20, 9988951), (28, 7134965), (35, 5707972), (70, 2853986), (140, 1426993), (211, 946820), (422, 473410), (844, 236705), (1055, 189364), (1477, 135260), (2110, 94682), (2954, 67630), (4220, 47341), (5908, 33815), (6763, 29540), (7385, 27052), (13526, 14770)]