68782840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245653}}^1$

素因数の和:245671

約数の個数: 32

約数和(自身を含む): 176870880

約数和(自身を除く): 108088040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245653, 491306, 982612, 1228265, 1719571, 1965224, 2456530, 3439142, 4913060, 6878284, 8597855, 9826120, 13756568, 17195710, 34391420, 68782840]

約数ペア:

[(1, 68782840), (2, 34391420), (4, 17195710), (5, 13756568), (7, 9826120), (8, 8597855), (10, 6878284), (14, 4913060), (20, 3439142), (28, 2456530), (35, 1965224), (40, 1719571), (56, 1228265), (70, 982612), (140, 491306), (280, 245653)]