278538510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{403679}}^1$

素因数の和:403712

約数の個数: 32

約数和(自身を含む): 697559040

約数和(自身を除く): 419020530

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 403679, 807358, 1211037, 2018395, 2422074, 4036790, 6055185, 9284617, 12110370, 18569234, 27853851, 46423085, 55707702, 92846170, 139269255, 278538510]

約数ペア:

[(1, 278538510), (2, 139269255), (3, 92846170), (5, 55707702), (6, 46423085), (10, 27853851), (15, 18569234), (23, 12110370), (30, 9284617), (46, 6055185), (69, 4036790), (115, 2422074), (138, 2018395), (230, 1211037), (345, 807358), (690, 403679)]