87206980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1523}}^1$

素因数の和:1948

約数の個数: 48

約数和(自身を含む): 209946240

約数和(自身を除く): 122739260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 409, 818, 1523, 1636, 2045, 2863, 3046, 4090, 5726, 6092, 7615, 8180, 10661, 11452, 14315, 15230, 21322, 28630, 30460, 42644, 53305, 57260, 106610, 213220, 622907, 1245814, 2491628, 3114535, 4360349, 6229070, 8720698, 12458140, 17441396, 21801745, 43603490, 87206980]

約数ペア:

[(1, 87206980), (2, 43603490), (4, 21801745), (5, 17441396), (7, 12458140), (10, 8720698), (14, 6229070), (20, 4360349), (28, 3114535), (35, 2491628), (70, 1245814), (140, 622907), (409, 213220), (818, 106610), (1523, 57260), (1636, 53305), (2045, 42644), (2863, 30460), (3046, 28630), (4090, 21322), (5726, 15230), (6092, 14315), (7615, 11452), (8180, 10661)]