78153320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279119}}^1$

素因数の和:279137

約数の個数: 32

約数和(自身を含む): 200966400

約数和(自身を除く): 122813080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279119, 558238, 1116476, 1395595, 1953833, 2232952, 2791190, 3907666, 5582380, 7815332, 9769165, 11164760, 15630664, 19538330, 39076660, 78153320]

約数ペア:

[(1, 78153320), (2, 39076660), (4, 19538330), (5, 15630664), (7, 11164760), (8, 9769165), (10, 7815332), (14, 5582380), (20, 3907666), (28, 2791190), (35, 2232952), (40, 1953833), (56, 1395595), (70, 1116476), (140, 558238), (280, 279119)]