86921240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{310433}}^1$

素因数の和:310451

約数の個数: 32

約数和(自身を含む): 223512480

約数和(自身を除く): 136591240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 310433, 620866, 1241732, 1552165, 2173031, 2483464, 3104330, 4346062, 6208660, 8692124, 10865155, 12417320, 17384248, 21730310, 43460620, 86921240]

約数ペア:

[(1, 86921240), (2, 43460620), (4, 21730310), (5, 17384248), (7, 12417320), (8, 10865155), (10, 8692124), (14, 6208660), (20, 4346062), (28, 3104330), (35, 2483464), (40, 2173031), (56, 1552165), (70, 1241732), (140, 620866), (280, 310433)]