51221240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{182933}}^1$

素因数の和:182951

約数の個数: 32

約数和(自身を含む): 131712480

約数和(自身を除く): 80491240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 182933, 365866, 731732, 914665, 1280531, 1463464, 1829330, 2561062, 3658660, 5122124, 6402655, 7317320, 10244248, 12805310, 25610620, 51221240]

約数ペア:

[(1, 51221240), (2, 25610620), (4, 12805310), (5, 10244248), (7, 7317320), (8, 6402655), (10, 5122124), (14, 3658660), (20, 2561062), (28, 1829330), (35, 1463464), (40, 1280531), (56, 914665), (70, 731732), (140, 365866), (280, 182933)]