28937860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{206699}}^1$

素因数の和:206715

約数の個数: 24

約数和(自身を含む): 69451200

約数和(自身を除く): 40513340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 206699, 413398, 826796, 1033495, 1446893, 2066990, 2893786, 4133980, 5787572, 7234465, 14468930, 28937860]

約数ペア:

[(1, 28937860), (2, 14468930), (4, 7234465), (5, 5787572), (7, 4133980), (10, 2893786), (14, 2066990), (20, 1446893), (28, 1033495), (35, 826796), (70, 413398), (140, 206699)]